\documentclass[11pt,a4paper]{article}
\usepackage[margin=26mm]{geometry}
\usepackage{amsmath}
\usepackage{fontspec}
\setmainfont{Nimbus Roman}
\setsansfont{Nimbus Sans}
\setmonofont{Nimbus Mono PS}
\usepackage{mtpro2}
\usepackage{booktabs,tabularx,longtable,enumitem}
\usepackage[hidelinks,pdftitle={mtp2otf: User guide and font reference},pdfauthor={}]{hyperref}
\setlength{\parindent}{0pt}
\setlength{\parskip}{4pt}
\emergencystretch=2em
\setlist{nosep,leftmargin=*}
\clubpenalty=10000
\widowpenalty=10000
\newcommand{\file}[1]{{\small\texttt{\detokenize{#1}}}}
\AddToHook{env/verbatim/begin}{\small}
\title{mtp2otf\\\large User guide and font reference}
\author{}
\date{}
\begin{document}
\maketitle
\vspace{-2em}

\section{Overview}
mtp2otf converts MathTime\texttrademark{} Professional 2 (MTPro2) Type~1
fonts and TeX metrics to OpenType MATH. It preserves the source designs,
including optical script sizes and large symbols, and supplies the layout
data used by Unicode math engines. Upright Latin letters and additional
text characters come from a separate Roman font pair.

The converter produces OTF for LuaLaTeX and TTF for Microsoft Word.
Full and Lite use separate family names and can be installed together.
The selected edition requires the corresponding MTPro2 source files.

No additional mtp2otf package is needed to use the generated fonts.
Unicode characters and OpenType features provide access to the designs.
The original \file{mtpro2} package's custom commands are not included;
Section~\ref{sec:macro-equivalents} relates them to the available inputs.

\section{Building the fonts}\label{sec:build}
\subsection{Requirements}
The build requires a POSIX shell, Python~3.10 or later with fontTools,
FontForge with Python~3.10 or later support, and \file{tftopl} from
TeX Live. These commands must be on PATH.

Create \file{mtpro2/} and \file{donors/} beside \file{build.sh}.
Supply the font files separately:
\begin{itemize}
\item \file{mtpro2/}: MTPro2 PFB/TFM files and \file{mtpro2.sty}.
Full also requires \file{umt2ms.fd}, \file{umt2mf.fd},
\file{umt2bb.fd}, and \file{umt2hrb.fd}.
\item \file{donors/}: \file{NimbusRoman-Regular.otf} and
\file{NimbusRoman-Bold.otf} from Artifex urw-base35.
\end{itemize}
Place the files directly in these directories. The build reports missing
inputs for the selected edition.

Another Roman pair can be selected with the options below. The faces must
be static CFF OTF or TrueType TTF, upright and proportional, from the same
family, and have the required Latin and digit coverage and Regular/Bold
weights.

\subsection{Build options}
The default build uses Full and minimal donor coverage:
\begin{samepage}
\begin{verbatim}
./build.sh
\end{verbatim}
\end{samepage}
Select Lite, extended donor coverage, or a different Roman pair as needed:
\begin{samepage}
\begin{verbatim}
./build.sh --edition=lite
./build.sh --donor-coverage=extended
./build.sh --roman-regular=/path/to/Regular.otf \
           --roman-bold=/path/to/Bold.otf
./build.sh --help
\end{verbatim}
\end{samepage}
The edition and donor options can be combined. Relative donor paths are
resolved from the current directory; project paths are relative to
\file{build.sh}.

Minimal coverage uses a fixed selection of Roman characters. Extended
coverage adds eligible characters available in the Regular donor, without
replacing MTPro2's mathematical glyphs. It does not add Full-only features
to Lite. Appendix~\ref{sec:donors} lists the selection rules.

\subsection{Output}
The generated fonts are placed in \file{out/}:
\begin{center}
\begin{tabular}{@{}lll@{}}
\toprule
Edition & OTF & TTF \\
\midrule
Full & \file{MTPro2Math.otf} & \file{MTPro2Math.ttf} \\
Lite & \file{MTPro2MathLite.otf} & \file{MTPro2MathLite.ttf} \\
\bottomrule
\end{tabular}
\end{center}
Install the generated fonts manually. Errors are reported on stderr;
generation diagnostics are recorded in \file{build/<edition>/build.log}.
Check the command's exit status: a failed build may leave previous output
files in place. Do not run concurrent builds of the same edition.

\section{Using the fonts}\label{sec:use}
\subsection{Microsoft Word}
Install the TTF and select \file{MTPro2 Math} or
\file{MTPro2 Math Lite} as the equation font. For the equation text,
enable \emph{Kerning for fonts} at 1~pt and above in the Font dialog.
In Word, ordinary character spacing can be tighter than in the original Type~1 package.

Use Word's equation editor for mathematical alphabets, accents, delimiters
and operators. It does not expose the same OpenType feature controls as
LuaLaTeX. The explicit feature and private-use examples in this manual
are for LuaLaTeX.

\subsection{LuaLaTeX}
Load the OTF with \file{unicode-math}:
\begin{samepage}
\begin{verbatim}
\usepackage{unicode-math}
\setmathfont{MTPro2Math.otf}
\end{verbatim}
\end{samepage}
For Lite, use \file{MTPro2MathLite.otf}. If the font is not installed,
specify its directory with the \file{Path} option.

Use \file{unicode-math} commands for alphabets and symbols, and the usual
math structures for scripts, fractions, accents and delimiters.
OpenType feature selection is described in Section~\ref{sec:selection}.

Luaotfload 3.29 can omit pair kerning between script-size variants.

The font can also be used with \file{lua-unicode-math}.

\subsection{Samples}
\file{doc/word.pdf} and \file{doc/lualatex.pdf} show matching Full-edition
examples. Their editable sources are \file{doc/word.docx} and
\file{doc/lualatex.tex}.

Open the Word source in Word and export its PDF there. To typeset the
LuaLaTeX source, build Full and run \file{lualatex lualatex.tex} from
\file{doc/}. The source uses \file{mathtools}, \file{unicode-math},
and Nimbus Roman Regular, Bold, Italic and BoldItalic.

\section{Alphabets and symbol selection}\label{sec:selection}
\subsection{Mathematical alphabets}
Use the mathematical Unicode characters or the corresponding
\file{unicode-math} commands. The following commands select the principal
Latin alphabets:
\begin{center}
\begin{tabular}{@{}lll@{}}
\toprule
Alphabet & Command & Edition \\
\midrule
Upright & \file{\symup{ABCxyz}} & Full, Lite \\
Italic & \file{\symit{ABCxyz}} & Full, Lite \\
Bold upright & \file{\symbfup{ABCxyz}} & Full, Lite \\
Bold italic & \file{\symbfit{ABCxyz}} & Full \\
Script & \file{\symscr{ABCxyz}} & Full \\
Bold Script & \file{\symbfscr{ABCxyz}} & Full \\
Fraktur & \file{\symfrak{ABCxyz}} & Full \\
Bold Fraktur & \file{\symbffrak{ABCxyz}} & Full \\
Blackboard bold & \file{\symbb{ABCxyz}} & Full \\
\bottomrule
\end{tabular}
\end{center}
Mathematical sans and monospace alphabets are not included.
Blackboard bold uses the original mtpbb design by default.

Roman donors supply upright Latin and mathematical bold upright Latin
and digits. Mathematical italic, bold italic and non-Latin-shaped Greek
come from MTPro2. Character variants provide alternative designs,
including original MTPro2 bold and other Blackboard styles.

\subsection{Alternative designs}
Character variants (CVs) select alternatives to the default glyphs.
Appendix~\ref{sec:alphabets} lists their tags and input characters.
In LuaLaTeX, select a feature through \file{RawFeature}:
\begin{samepage}
\begin{verbatim}
\setmathfont{MTPro2Math.otf}[RawFeature={+cv01}]
\end{verbatim}
\end{samepage}
This selects swash z wherever its input character occurs.
For a local choice, define a named math version in the preamble and
select it outside the formula:
\begin{samepage}
\begin{verbatim}
\setmathfont{MTPro2Math.otf}
\setmathfont{MTPro2Math.otf}[version=swash,
                          RawFeature={+cv01}]
\begingroup\mathversion{swash}
\[ z \]
\endgroup
\end{verbatim}
\end{samepage}
A group restores the previous version. Numbered \file{RawFeature}
choices start at 1; for example, \file{cv15=27} selects a particular
arc design. Enable only one of the competing variants for a given input.

The \file{ssty} feature supplies optical script designs to the math
engine. In Full, \file{salt} selects Curly alternatives from Script
inputs: add \file{RawFeature={+salt}} to \file{\setmathfont} and
use \file{\symscr{ABC}}. A named math version limits the selection
to a group.

\subsection{Growing and fixed symbols}
Delimiters, radicals and wide accents select sizes through OpenType MATH.
For example:
\begin{samepage}
\begin{verbatim}
\[ \left(\frac{a+b}{c+d}\right)
   \qquad \sqrt{x^2+y^2}
   \qquad \widehat{ABC} \]
\end{verbatim}
\end{samepage}
The font supplies prebuilt designs and, for some symbols, assemblies
that extend them with repeated parts. The engine selects a size from the
formula's dimensions and math style. Large operators use a finite series
of prebuilt designs.

Fixed CV choices select individual designs for custom constructions.
Their measurement, centering and spacing are the responsibility of the
calling macro. Accent glyphs require accent syntax to attach them to a
nucleus. Appendix~\ref{sec:large} gives the automatic inputs, fixed
choices and private-use entries.

\section{License and project}
Project-authored code and documentation use 0BSD (\file{LICENSE}).
MTPro2, donor fonts and external tools retain their respective terms.
MathTime is a trademark of Publish or Perish, Inc. This independent project
is not affiliated with or endorsed by Publish or Perish, Inc., Personal
TeX, Inc., or Artifex Software.

Repository: \url{https://github.com/satom-zk/mtp2otf}\\
Issues: \url{https://github.com/satom-zk/mtp2otf/issues}

\appendix

\section{Character variants}\label{sec:alphabets}
The table lists CV tags, their standard Unicode inputs and edition
availability. Tags with multiple choices use the numbered values in
Appendix~\ref{sec:large}. Selection syntax is given in
Section~\ref{sec:selection}. AMS denotes MTPro2's own AMS symbol sources.

\begingroup\small\setlength\tabcolsep{4pt}\renewcommand\arraystretch{1.12}
\begin{longtable}{@{}p{0.14\linewidth}p{0.66\linewidth}p{0.13\linewidth}@{}}
\toprule
Feature & Meaning and standard Unicode targets & Edition \\ \midrule \endfirsthead
\toprule
Feature & Meaning and standard Unicode targets & Edition \\ \midrule \endhead
\bottomrule\endfoot
\texttt{cv01} & swash z\newline U+1D467 & both \\
\texttt{cv02} & Full empty-set alternate\newline U+2205 & Full \\
\texttt{cv03} & mtpbbd (mt2bb / b / n)\newline Blackboard inputs & Full \\
\texttt{cv04} & mtpbbi (mt2bb / m / it)\newline Blackboard inputs & Full \\
\texttt{cv05} & mtphrb (Holey Roman Bold family mt2hrb / m / n)\newline Blackboard inputs & Full \\
\texttt{cv06} & mtphrd (Holey Roman Bold family mt2hrb / b / n)\newline Blackboard inputs & Full \\
\texttt{cv07} & mtphbi (Holey Roman Bold family mt2hrb / m / it)\newline Blackboard inputs & Full \\
\texttt{cv08} & straight braces\newline U+007B, U+007D & both \\
\texttt{cv09} & MTPro2 AMS negated-relation alternates\newline U+2241, U+2288--2289 & Full \\
\texttt{cv10} & variant subsetneq/supsetneq\newline U+228A--228B & Full \\
\texttt{cv11} & hbar alternate\newline U+210F & both \\
\texttt{cv12} & slanted large operators\newline U+220F--2211 & both \\
\texttt{cv13} & fixed overbrace designs\newline U+23DE & both \\
\texttt{cv14} & fixed underbrace designs\newline U+23DF & both \\
\texttt{cv15} & fixed overparen designs\newline U+23DC & both \\
\texttt{cv16} & fixed delimiter designs\newline U+0028--0029, U+005C, U+007B, U+007D, U+27E8--27E9 & both \\
\texttt{cv17} & fixed radical designs\newline U+221A & both \\
\texttt{cv18} & fixed accent designs\newline U+0302--0303, U+030C & both \\
\texttt{cv19} & fixed brace designs\newline U+007B, U+007D & both \\
\texttt{cv20} & plain stretchable brace construction\newline U+23DE--23DF & both \\
\texttt{cv21} & original curly brace variant/assembly construction\newline U+23DE--23DF & both \\
\texttt{cv89} & original MTPro2 bold Latin and digits\newline U+1D400--1D433, U+1D7CE--1D7D7 & both \\
\texttt{cv89} & Latin-shaped Greek aliases of those bold glyphs\newline U+1D6A8--1D6A9, U+1D6AC--1D6AE, U+1D6B0--1D6B1, U+1D6B3--1D6B4, U+1D6B6, U+1D6B8, U+1D6BB, U+1D6BE, U+1D6D0 & Full \\
\texttt{cv90} & Script/Fraktur source alternates and Fraktur reuse, text design\newline Script/Fraktur inputs & Full \\
\texttt{cv91} & Script/Fraktur source alternates and Fraktur reuse, script design\newline Script/Fraktur inputs & Full \\
\texttt{cv92} & Script/Fraktur source alternates and Fraktur reuse, scriptscript design\newline Script/Fraktur inputs & Full \\
\texttt{cv93} & Curly source alternates, text design\newline U+2133, U+1D4A2, U+1D4A9, U+1D4AC, U+1D4B4 & Full \\
\texttt{cv94} & Curly source alternates, script design\newline U+2133, U+1D4A2, U+1D4A9, U+1D4AC, U+1D4B4 & Full \\
\texttt{cv95} & Curly source alternates, scriptscript design\newline U+2133, U+1D4A2, U+1D4A9, U+1D4AC, U+1D4B4 & Full \\
\texttt{cv96} & original MTPro2 AMS yen/registered alternates\newline U+00A5, U+00AE & Full \\
\end{longtable}\endgroup

\begingroup\raggedright
\textbf{Blackboard inputs:} U+2102, U+210D, U+2115, U+2119--211A, U+211D, U+2124, U+1D538--1D539, U+1D53B--1D53E, U+1D540--1D544, U+1D546, U+1D54A--1D550, U+1D552--1D56B, U+1D7D8--1D7E1.\par
\textbf{Script/Fraktur inputs:} U+2110--2112, U+211C, U+1D49E, U+1D4A2, U+1D4AC, U+1D4AE, U+1D4B4--1D4B5, U+1D4C7, U+1D4CF, U+1D4D2, U+1D4D6, U+1D4D8, U+1D4DB, U+1D4E0, U+1D4E2, U+1D4E8--1D4E9, U+1D4FB, U+1D503, U+1D51C, U+1D535--1D536, U+1D584, U+1D59D--1D59E.\par
\endgroup

\subsection{Additional source letters and fixed accents}
The following private-use characters select source letter and
fixed-accent designs in both editions. Letter inputs use an explicit
math character; fixed accents use an accent primitive:
\begin{samepage}
\begin{verbatim}
\[ \Umathchar 0 \symoperators "E240\relax \]
\[ \Umathaccent fixed 0 \symoperators "E24C {x} \]
\end{verbatim}
\end{samepage}

\begin{center}
\begin{tabularx}{\linewidth}{@{}l>{\raggedright\arraybackslash}X@{}}
\toprule
Input & Design \\
\midrule
U+E240 & Italic beta variant \\
U+E241, U+E242 & Italic and upright delta variants \\
U+E243, U+E244 & Italic and upright barred d \\
U+E24E, U+E24A & Fixed bar designs: wbar and wwbar \\
U+E24F, U+E250, U+E251 & Fixed wide hat, tilde and check \\
U+E24B, U+E24C & Raised dot and double-dot accents \\
U+E254, U+E255 & Raised triple-dot and quadruple-dot accents \\
\bottomrule
\end{tabularx}
\end{center}

\section{Large-symbol inputs}\label{sec:large}
\subsection{Automatic size selection}
The table lists the input, direction of growth (V: vertical; H:
horizontal), number of prebuilt variants, and availability of assembly.
The input examples use LuaLaTeX. Pair \file{\left} and \file{\right}
around a formula; a dot gives an invisible delimiter. Use \file{\sqrt[n]}
for a radical with a degree.

\begingroup\fontsize{8}{10}\selectfont\setlength\tabcolsep{3pt}\renewcommand\arraystretch{1.08}
\begin{longtable}{@{}p{0.18\linewidth}p{0.085\linewidth}p{0.235\linewidth}p{0.035\linewidth}p{0.045\linewidth}p{0.07\linewidth}p{0.12\linewidth}p{0.065\linewidth}@{}}
\toprule
Meaning & Unicode & Input & V/H & Var. & Asm. & Control & Edition \\ \midrule \endfirsthead
\toprule
Meaning & Unicode & Input & V/H & Var. & Asm. & Control & Edition \\ \midrule \endhead
\bottomrule\endfoot
left parenthesis & \texttt{U+\allowbreak{}0028} & \texttt{\textbackslash{}left(} & V & 26 & yes & body height & both \\
right parenthesis & \texttt{U+\allowbreak{}0029} & \texttt{\textbackslash{}right)} & V & 26 & yes & body height & both \\
solidus & \texttt{U+\allowbreak{}002F} & \texttt{\textbackslash{}left/\allowbreak{}} & V & 26 & no & body height & both \\
left square bracket & \texttt{U+\allowbreak{}005B} & \texttt{\textbackslash{}left\textbackslash{}lbrack} & V & 5 & yes & body height & both \\
reverse solidus & \texttt{U+\allowbreak{}005C} & \texttt{\textbackslash{}left\textbackslash{}backslash} & V & 26 & no & body height & both \\
right square bracket & \texttt{U+\allowbreak{}005D} & \texttt{\textbackslash{}right\textbackslash{}rbrack} & V & 5 & yes & body height & both \\
left curly bracket & \texttt{U+\allowbreak{}007B} & \texttt{\textbackslash{}left\textbackslash{}\textbraceleft{}} & V & 26 & yes & body height & both \\
vertical line & \texttt{U+\allowbreak{}007C} & \texttt{\textbackslash{}left\textbackslash{}vert} & V & 2 & yes & body height & both \\
right curly bracket & \texttt{U+\allowbreak{}007D} & \texttt{\textbackslash{}right\textbackslash{}\textbraceright{}} & V & 26 & yes & body height & both \\
combining circumflex accent & \texttt{U+\allowbreak{}0302} & \texttt{\textbackslash{}widehat} & H & 40 & no & body width & both \\
combining tilde & \texttt{U+\allowbreak{}0303} & \texttt{\textbackslash{}widetilde} & H & 40 & no & body width & both \\
combining caron & \texttt{U+\allowbreak{}030C} & \texttt{\textbackslash{}widecheck} & H & 40 & no & body width & both \\
double vertical line & \texttt{U+\allowbreak{}2016} & \texttt{\textbackslash{}left\textbackslash{}Vert} & V & 2 & yes & body height & both \\
n-ary product & \texttt{U+\allowbreak{}220F} & \texttt{\textbackslash{}prod} & V & 6 & no & operator size & both \\
n-ary coproduct & \texttt{U+\allowbreak{}2210} & \texttt{\textbackslash{}coprod} & V & 6 & no & operator size & both \\
n-ary summation & \texttt{U+\allowbreak{}2211} & \texttt{\textbackslash{}sum} & V & 6 & no & operator size & both \\
square root & \texttt{U+\allowbreak{}221A} & \texttt{\textbackslash{}sqrt} & V & 26 & yes & body height & both \\
integral & \texttt{U+\allowbreak{}222B} & \texttt{\textbackslash{}int} & V & 6 & no & operator size & both \\
double integral & \texttt{U+\allowbreak{}222C} & \texttt{\textbackslash{}iint} & V & 6 & no & operator size & both \\
triple integral & \texttt{U+\allowbreak{}222D} & \texttt{\textbackslash{}iiint} & V & 6 & no & operator size & both \\
contour integral & \texttt{U+\allowbreak{}222E} & \texttt{\textbackslash{}oint} & V & 6 & no & operator size & both \\
surface integral & \texttt{U+\allowbreak{}222F} & \texttt{\textbackslash{}oiint} & V & 6 & no & operator size & both \\
volume integral & \texttt{U+\allowbreak{}2230} & \texttt{\textbackslash{}oiiint} & V & 6 & no & operator size & both \\
clockwise integral & \texttt{U+\allowbreak{}2231} & \texttt{\textbackslash{}intclockwise} & V & 6 & no & operator size & both \\
clockwise contour integral & \texttt{U+\allowbreak{}2232} & \texttt{\textbackslash{}varointclockwise} & V & 6 & no & operator size & both \\
anticlockwise contour integral & \texttt{U+\allowbreak{}2233} & \texttt{\textbackslash{}ointctrclockwise} & V & 6 & no & operator size & both \\
n-ary logical and & \texttt{U+\allowbreak{}22C0} & \texttt{\textbackslash{}bigwedge} & V & 6 & no & operator size & both \\
n-ary logical or & \texttt{U+\allowbreak{}22C1} & \texttt{\textbackslash{}bigvee} & V & 6 & no & operator size & both \\
n-ary intersection & \texttt{U+\allowbreak{}22C2} & \texttt{\textbackslash{}bigcap} & V & 6 & no & operator size & both \\
n-ary union & \texttt{U+\allowbreak{}22C3} & \texttt{\textbackslash{}bigcup} & V & 6 & no & operator size & both \\
left ceiling & \texttt{U+\allowbreak{}2308} & \texttt{\textbackslash{}left\textbackslash{}lceil} & V & 5 & yes & body height & both \\
right ceiling & \texttt{U+\allowbreak{}2309} & \texttt{\textbackslash{}right\textbackslash{}rceil} & V & 5 & yes & body height & both \\
left floor & \texttt{U+\allowbreak{}230A} & \texttt{\textbackslash{}left\textbackslash{}lfloor} & V & 5 & yes & body height & both \\
right floor & \texttt{U+\allowbreak{}230B} & \texttt{\textbackslash{}right\textbackslash{}rfloor} & V & 5 & yes & body height & both \\
top parenthesis & \texttt{U+\allowbreak{}23DC} & \texttt{\textbackslash{}overparen} & H & 26 & yes & body width & both \\
top curly bracket & \texttt{U+\allowbreak{}23DE} & \texttt{\textbackslash{}overbrace} & H & 0 & yes & body width & both \\
bottom curly bracket & \texttt{U+\allowbreak{}23DF} & \texttt{\textbackslash{}underbrace} & H & 0 & yes & body width & both \\
mathematical left angle bracket & \texttt{U+\allowbreak{}27E8} & \texttt{\textbackslash{}left\textbackslash{}langle} & V & 26 & no & body height & both \\
mathematical right angle bracket & \texttt{U+\allowbreak{}27E9} & \texttt{\textbackslash{}right\textbackslash{}rangle} & V & 26 & no & body height & both \\
n-ary circled dot operator & \texttt{U+\allowbreak{}2A00} & \texttt{\textbackslash{}bigodot} & V & 6 & no & operator size & both \\
n-ary circled plus operator & \texttt{U+\allowbreak{}2A01} & \texttt{\textbackslash{}bigoplus} & V & 6 & no & operator size & both \\
n-ary circled times operator & \texttt{U+\allowbreak{}2A02} & \texttt{\textbackslash{}bigotimes} & V & 6 & no & operator size & both \\
n-ary union operator with dot & \texttt{U+\allowbreak{}2A03} & \texttt{\textbackslash{}bigcupdot} & V & 6 & no & operator size & both \\
n-ary union operator with plus & \texttt{U+\allowbreak{}2A04} & \texttt{\textbackslash{}biguplus} & V & 6 & no & operator size & both \\
n-ary square union operator & \texttt{U+\allowbreak{}2A06} & \texttt{\textbackslash{}bigsqcup} & V & 6 & no & operator size & both \\
finite part integral & \texttt{U+\allowbreak{}2A0D} & \texttt{\textbackslash{}intbar} & V & 6 & no & operator size & both \\
integral average with slash & \texttt{U+\allowbreak{}2A0F} & \texttt{\textbackslash{}fint} & V & 6 & no & operator size & both \\
cap product & \texttt{U+\allowbreak{}E280} & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E280} & V & 6 & no & operator size & both \\
slanted sum & \texttt{U+\allowbreak{}E281} & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E281} & V & 6 & no & operator size & both \\
slanted product & \texttt{U+\allowbreak{}E282} & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E282} & V & 6 & no & operator size & both \\
slanted coproduct & \texttt{U+\allowbreak{}E283} & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E283} & V & 6 & no & operator size & both \\
variant large land & \texttt{U+\allowbreak{}E284} & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E284} & V & 6 & no & operator size & both \\
large asterisk & \texttt{U+\allowbreak{}E285} & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E285} & V & 6 & no & operator size & both \\
finite wide overbar & \texttt{U+\allowbreak{}E286} & accent input; see \ref{sec:pua-accents} & H & 3 & no & body width & both \\
assembled wide vector & \texttt{U+\allowbreak{}E287} & accent input; see \ref{sec:pua-accents} & H & 0 & yes & body width & both \\
\end{longtable}\endgroup

\begin{samepage}
\subsection{Size requests}
The engine selects variants using MATH AdvanceMeasurement, formula dimensions,
style, delimiter factor and shortfall. AdvanceMeasurement is a selection
dimension, not an ink measurement. Operators have finite size series.
Lua can request a larger operator with \file{\Umathoperatorsize}:

\begin{verbatim}
\begingroup
\[ \Umathoperatorsize\displaystyle=72pt
   \sum_{n=0}^{N} a_n \]
\endgroup
\end{verbatim}
The request selects an available operator design; its ink height may
differ from 72pt.

\end{samepage}

\subsection{Fixed character-variant choices}
The table lists 121 choices in their parameter order. cv15=27 selects the
alternate arc design. cv13--cv16 and cv18--cv19 select glyphs without growing
constructions. Each cv17 choice selects a single terminal radical design
without assembly.
Use the Input and RawFeature columns to select a design; the last column
names the stored glyph.

For a fixed design, select the feature and use an explicit math class.
This example displays the alternate arc as a standalone class-0 symbol:
\begin{samepage}
\begin{verbatim}
\setmathfont{MTPro2Math.otf}[version=fixedarc,
                          RawFeature={cv15=27}]
\begingroup\mathversion{fixedarc}
\[ \Umathchar 0 \symoperators "23DC \]
\endgroup
\end{verbatim}
\end{samepage}
Fixed accents require accent syntax; use the ordinary radical for
automatic \file{\sqrt} growth.

\begingroup\small\setlength\tabcolsep{3pt}\renewcommand\arraystretch{1.08}
\begin{longtable}{@{}p{0.16\linewidth}p{0.20\linewidth}p{0.56\linewidth}@{}}
\toprule
Input & RawFeature & Glyph identifier \\ \midrule \endfirsthead
\toprule
Input & RawFeature & Glyph identifier \\ \midrule \endhead
\bottomrule\endfoot
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=1} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe176.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=2} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe177.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=3} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe178.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=4} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe179.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=5} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe180.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=6} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe181.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=7} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe182.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=8} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe183.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=9} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe184.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=10} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe185.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=11} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe186.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=12} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe187.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=13} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe188.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=14} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe189.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=15} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe190.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=16} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe191.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=17} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe192.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=18} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf160.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=19} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf161.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=20} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf162.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=21} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf163.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=22} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf164.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=23} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf165.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=24} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf166.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=25} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf167.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=26} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf168.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=27} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf169.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=28} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf170.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=29} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exf171.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=30} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exg160.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=31} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exg161.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=32} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exg162.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=33} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exg163.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=34} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exg164.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DE} & \texttt{cv13=35} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exg165.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=1} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe144.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=2} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe145.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=3} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe146.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=4} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe147.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=5} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe148.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=6} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe149.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=7} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe150.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=8} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe151.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=9} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe152.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=10} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe153.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=11} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe154.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=12} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe155.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=13} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe156.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=14} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe157.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=15} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe158.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=16} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe159.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=17} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe160.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=18} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf144.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=19} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf145.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=20} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf146.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=21} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf147.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=22} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf148.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=23} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf149.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=24} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf150.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=25} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf151.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=26} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf152.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=27} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf153.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=28} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf154.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=29} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exf155.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=30} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exg144.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=31} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exg145.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=32} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exg146.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=33} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exg147.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=34} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exg148.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DF} & \texttt{cv14=35} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exg149.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=1} & \texttt{uni23DC.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=2} & \texttt{exa.\allowbreak{}191.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=3} & \texttt{exa.\allowbreak{}192.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=4} & \texttt{exa.\allowbreak{}193.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=5} & \texttt{exa.\allowbreak{}194.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=6} & \texttt{uni23DC.\allowbreak{}exe208.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=7} & \texttt{uni23DC.\allowbreak{}exe209.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=8} & \texttt{uni23DC.\allowbreak{}exe210.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=9} & \texttt{uni23DC.\allowbreak{}exe211.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=10} & \texttt{uni23DC.\allowbreak{}exe212.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=11} & \texttt{uni23DC.\allowbreak{}exe213.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=12} & \texttt{uni23DC.\allowbreak{}exe214.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=13} & \texttt{uni23DC.\allowbreak{}exf177.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=14} & \texttt{uni23DC.\allowbreak{}exf178.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=15} & \texttt{uni23DC.\allowbreak{}exf179.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=16} & \texttt{uni23DC.\allowbreak{}exf180.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=17} & \texttt{uni23DC.\allowbreak{}exf181.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=18} & \texttt{uni23DC.\allowbreak{}exf182.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=19} & \texttt{uni23DC.\allowbreak{}exf183.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=20} & \texttt{uni23DC.\allowbreak{}exg177.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=21} & \texttt{uni23DC.\allowbreak{}exg178.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=22} & \texttt{uni23DC.\allowbreak{}exg179.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=23} & \texttt{uni23DC.\allowbreak{}exg180.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=24} & \texttt{uni23DC.\allowbreak{}exg181.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=25} & \texttt{uni23DC.\allowbreak{}exg182.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=26} & \texttt{uni23DC.\allowbreak{}exg183.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}23DC} & \texttt{cv15=27} & \texttt{exa.\allowbreak{}arc195.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}0028} & \texttt{cv16=1} & \texttt{uni0028.\allowbreak{}exg0.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}0029} & \texttt{cv16=1} & \texttt{uni0029.\allowbreak{}exg1.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007B} & \texttt{cv16=1} & \texttt{uni007B.\allowbreak{}exf8.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007B} & \texttt{cv16=2} & \texttt{uni007B.\allowbreak{}exg8.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007D} & \texttt{cv16=1} & \texttt{uni007D.\allowbreak{}exf9.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007D} & \texttt{cv16=2} & \texttt{uni007D.\allowbreak{}exg9.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}27E8} & \texttt{cv16=1} & \texttt{uni27E8.\allowbreak{}exg10.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}27E9} & \texttt{cv16=1} & \texttt{uni27E9.\allowbreak{}exg11.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}005C} & \texttt{cv16=1} & \texttt{uni005C.\allowbreak{}exg15.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}221A} & \texttt{cv17=1} & \texttt{uni221A.\allowbreak{}exf112.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}221A} & \texttt{cv17=2} & \texttt{uni221A.\allowbreak{}exg112.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}0302} & \texttt{cv18=1} & \texttt{uni0302.\allowbreak{}exe57.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}0302} & \texttt{cv18=2} & \texttt{uni0302.\allowbreak{}exf59.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}0303} & \texttt{cv18=1} & \texttt{exa.\allowbreak{}103.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}030C} & \texttt{cv18=1} & \texttt{uni030C.\allowbreak{}exe89.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}030C} & \texttt{cv18=2} & \texttt{uni030C.\allowbreak{}exf91.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007B} & \texttt{cv19=1} & \texttt{exa.\allowbreak{}morphed182.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007B} & \texttt{cv19=2} & \texttt{exa.\allowbreak{}morphed184.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007B} & \texttt{cv19=3} & \texttt{exa.\allowbreak{}morphed186.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007B} & \texttt{cv19=4} & \texttt{exa.\allowbreak{}morphed188.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007D} & \texttt{cv19=1} & \texttt{exa.\allowbreak{}morphed183.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007D} & \texttt{cv19=2} & \texttt{exa.\allowbreak{}morphed185.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007D} & \texttt{cv19=3} & \texttt{exa.\allowbreak{}morphed187.\allowbreak{}fixed} \\
\texttt{U+\allowbreak{}007D} & \texttt{cv19=4} & \texttt{exa.\allowbreak{}morphed189.\allowbreak{}fixed} \\
\end{longtable}\endgroup


\subsection{Alternative growing constructions}
cv08 selects straight vertical braces; cv12 selects slanted large operators.
For horizontal braces, cv20 selects plain assemblies and cv21 selects Curly
variants with assembly.

\begingroup\fontsize{8}{10}\selectfont\setlength\tabcolsep{3pt}\renewcommand\arraystretch{1.08}
\begin{longtable}{@{}p{0.13\linewidth}p{0.16\linewidth}p{0.4\linewidth}p{0.1\linewidth}p{0.1\linewidth}@{}}
\toprule
Input & RawFeature & Construction root & Variants & Assembly \\ \midrule \endfirsthead
\toprule
Input & RawFeature & Construction root & Variants & Assembly \\ \midrule \endhead
\bottomrule\endfoot
\texttt{U+\allowbreak{}007B} & \texttt{+\allowbreak{}cv08} & \texttt{braceleft.\allowbreak{}straight} & 5 & yes \\
\texttt{U+\allowbreak{}007D} & \texttt{+\allowbreak{}cv08} & \texttt{braceright.\allowbreak{}straight} & 5 & yes \\
\texttt{U+\allowbreak{}2211} & \texttt{+\allowbreak{}cv12} & \texttt{slsum} & 6 & no \\
\texttt{U+\allowbreak{}220F} & \texttt{+\allowbreak{}cv12} & \texttt{slprod} & 6 & no \\
\texttt{U+\allowbreak{}2210} & \texttt{+\allowbreak{}cv12} & \texttt{slcoprod} & 6 & no \\
\texttt{U+\allowbreak{}23DE} & \texttt{+\allowbreak{}cv20} & \texttt{brace.\allowbreak{}plain.\allowbreak{}over} & 0 & yes \\
\texttt{U+\allowbreak{}23DF} & \texttt{+\allowbreak{}cv20} & \texttt{brace.\allowbreak{}plain.\allowbreak{}under} & 0 & yes \\
\texttt{U+\allowbreak{}23DE} & \texttt{+\allowbreak{}cv21} & \texttt{uni23DE.\allowbreak{}curly.\allowbreak{}exe176} & 35 & yes \\
\texttt{U+\allowbreak{}23DF} & \texttt{+\allowbreak{}cv21} & \texttt{uni23DF.\allowbreak{}curly.\allowbreak{}exe144} & 35 & yes \\
\end{longtable}\endgroup

For example, select the curly construction in the preamble and use
ordinary overbrace and underbrace commands:
\begin{samepage}
\begin{verbatim}
\setmathfont{MTPro2Math.otf}[RawFeature={+cv21}]
\end{verbatim}
\end{samepage}
\begin{samepage}
\begin{verbatim}
\[ \overbrace{a+b+c+d}^{n} \qquad \underbrace{a+b+c+d}_{n} \]
\end{verbatim}
\end{samepage}

\subsection{Private-use operators and accents}\label{sec:pua-accents}
These private-use entries provide explicit access to large operators
and extensible accents. U+E280--\allowbreak{}E285 have class~1 and six vertical
variants; U+E286 and U+E287 use accent primitives.
For the operators, choose \texttt{\textbackslash{}limits} or \texttt{\textbackslash{}nolimits} according to the intended macro.
\begin{samepage}
\begin{verbatim}
% A cap-product operator, with an explicit size request:
\[ \Umathoperatorsize\displaystyle=72pt
   \Umathchar 1 \symoperators "E280\limits_{i=1}^{n}a_i \]
\end{verbatim}
\end{samepage}

\begingroup\fontsize{8}{10}\selectfont\setlength\tabcolsep{3pt}\renewcommand\arraystretch{1.08}
\begin{longtable}{@{}p{0.12\linewidth}p{0.22\linewidth}p{0.15\linewidth}p{0.43\linewidth}@{}}
\toprule
Input & Meaning & Class / structure & Concrete input \\ \midrule \endfirsthead
\toprule
Input & Meaning & Class / structure & Concrete input \\ \midrule \endhead
\bottomrule\endfoot
\texttt{U+\allowbreak{}E280} & cap product & 1 (operator) & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E280} \\
\texttt{U+\allowbreak{}E281} & slanted sum & 1 (operator) & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E281} \\
\texttt{U+\allowbreak{}E282} & slanted product & 1 (operator) & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E282} \\
\texttt{U+\allowbreak{}E283} & slanted coproduct & 1 (operator) & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E283} \\
\texttt{U+\allowbreak{}E284} & variant large land & 1 (operator) & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E284} \\
\texttt{U+\allowbreak{}E285} & large asterisk & 1 (operator) & \texttt{\textbackslash{}Umathchar 1 \textbackslash{}symoperators "E285} \\
\texttt{U+\allowbreak{}E286} & finite wide overbar & accent primitive & \texttt{\textbackslash{}Umathaccent 0 \textbackslash{}symoperators "E286 \textbraceleft{}a+\allowbreak{}b+\allowbreak{}c\textbraceright{}} \\
\texttt{U+\allowbreak{}E287} & assembled wide vector & accent primitive & \texttt{\textbackslash{}Umathaccent 0 \textbackslash{}symoperators "E287 \textbraceleft{}a+\allowbreak{}b+\allowbreak{}c\textbraceright{}} \\
\end{longtable}\endgroup

\subsection{Correspondence with Type~1 commands}\label{sec:macro-equivalents}
The font provides glyphs and MATH data; the original package's custom
measurements and placement remain macro responsibilities. The following
table gives the corresponding OpenType inputs.

\begingroup\fontsize{8}{10}\selectfont\setlength\tabcolsep{3pt}\renewcommand\arraystretch{1.08}
\begin{longtable}{@{}p{0.24\linewidth}p{0.24\linewidth}p{0.43\linewidth}@{}}
\toprule
Original name & OpenType input & Usage \\ \midrule \endfirsthead
\toprule
Original name & OpenType input & Usage \\ \midrule \endhead
\bottomrule\endfoot
\texttt{\textbackslash{}PARENS /\allowbreak{} \textbackslash{}LEFTRIGHT} & \texttt{\textbackslash{}left /\allowbreak{} \textbackslash{}right} & Choose delimiter inputs; the engine measures body height and centers using the math axis. Preserve custom side-space policy in a macro. \\
\texttt{\textbackslash{}SQRT /\allowbreak{} \textbackslash{}ROOT .\allowbreak{}.\allowbreak{}.\allowbreak{} \textbackslash{}OF} & \texttt{\textbackslash{}sqrt /\allowbreak{} \textbackslash{}sqrt[n]} & MATH handles radical growth and ordinary degree placement; original manual offsets remain a macro policy. \\
\texttt{\textbackslash{}XL /\allowbreak{} \textbackslash{}XXL /\allowbreak{} \textbackslash{}XXXL} & \texttt{\textbackslash{}Umathoperatorsize} & Request size for standard/PUA or cv12 operator families; source names are not exact size presets. Class and limits are explicit. \\
\texttt{\textbackslash{}overcbrace /\allowbreak{} \textbackslash{}undercbrace} & \texttt{cv21 /\allowbreak{} cv13 /\allowbreak{} cv14} & cv21 grows over/under a nucleus. cv13/cv14 select fixed designs whose placement and width policy are supplied by the macro. \\
\texttt{\textbackslash{}arc /\allowbreak{} \textbackslash{}Arc /\allowbreak{} \textbackslash{}widearc} & \texttt{\textbackslash{}overparen /\allowbreak{} cv15} & Automatic width selection or fixed parameter. cv15=27 preserves the alternate arc design. \\
\texttt{\textbackslash{}widehat /\allowbreak{} \textbackslash{}widecheck /\allowbreak{} \textbackslash{}widetilde} & \texttt{automatic /\allowbreak{} cv18} & Automatic width selection or fixed choices; accent syntax supplies nucleus attachment. \\
\texttt{\textbackslash{}straightbraces /\allowbreak{} \textbackslash{}morphedbraces} & \texttt{cv08 /\allowbreak{} cv19} & cv08 selects growing straight braces; cv19 selects fixed morphed designs. \\
\end{longtable}\endgroup


\section{Metrics and MATH constants}\label{sec:scalars}
\subsection{Glyph metrics}
The output uses 1000 units per em. For an untransformed MTPro2 glyph,
the TFM width supplies its advance and the TFM italic correction supplies
its MATH italic correction.
Ordinary GPOS pair adjustments store the TFM pair kern without an added italic-correction term.
Skewchar pairs are excluded from
ordinary kerning; scripts, primes and accents have separate positioning
data. Top-accent attachment for source math alphabets is based on
\[
  \frac{\operatorname{CHARWD}+\operatorname{CHARIC}}{2}
  + \operatorname{skewkern}.
\]
Coordinate transformations are accounted for in combining accents and
synthesized forms. Text, script and scriptscript designs use the source
optical sizes.

\subsection{Constants}
The following assignments define the 56 MATH constants and the common
connector overlap in both editions. They combine source metrics, package
script ratios and conversion policies.

The expressions follow \file{tools/math_constants.py} in evaluation order.
\texttt{round} uses nearest-integer rounding, ties to even; \texttt{//} is
floor division and \texttt{Fraction(a,b)} is exact rational arithmetic.
Intermediate rounding is part of each assignment.

\texttt{upm} is the output units per em. \texttt{s(i)} is
\texttt{round(sy[i] * upm)}, with \texttt{sy} from \file{mt2syt.tfm};
\texttt{e(i)} uses \file{mt2exa.tfm}. \texttt{theta = e(8)} and
\texttt{xh = s(5)}. \texttt{script\_sy} comes from \file{mt2sys.tfm}.
The script ratios are the \file{mtpro2.sty} defaults;
\texttt{\_pct(r)} is \texttt{round(r.numerator * 100 / r.denominator)}.

\texttt{display\_operator\_min\_height} is the floor of the average of
the separately rounded height-plus-depth values of extension TFM slots
\texttt{0x50} and \texttt{0x58}, in output units. The delimited-subformula
threshold uses the same value.

Source labels: MT-TFM, TFM parameters; MT-STY, package declarations;
MT-PFB, outlines; OT-SUG, OpenType suggested formulas; TeX, the script-space
convention; OT-MIG and MT-MIG, conversion policies. Combined labels indicate
that both source data and an assignment policy contribute.

Values are in font units except the script and radical-degree percentages.
The initial connector overlap is reduced to the nonnegative integer minimum
joining run when required by outline geometry. Both connector ends of
repeatable parts participate; fixed outside ends do not.

\begingroup
\small
\setlength{\tabcolsep}{4pt}
\begin{longtable}{@{}p{0.46\linewidth}p{0.48\linewidth}@{}}
\toprule
Field & Expression and source class \\
\midrule
\endfirsthead
\toprule
Field & Expression and source class \\
\midrule
\endhead
\bottomrule
\endfoot
\texttt{Axis\allowbreak Height} & \texttt{s(22)}\newline MT-TFM \\
\texttt{Fraction\allowbreak Numerator\allowbreak Shift\allowbreak Up} & \texttt{s(9)}\newline MT-TFM \\
\texttt{Fraction\allowbreak Numerator\allowbreak Display\allowbreak Style\allowbreak Shift\allowbreak Up} & \texttt{s(8)}\newline MT-TFM \\
\texttt{Fraction\allowbreak Denominator\allowbreak Shift\allowbreak Down} & \texttt{s(12)}\newline MT-TFM \\
\texttt{Fraction\allowbreak Denominator\allowbreak Display\allowbreak Style\allowbreak Shift\allowbreak Down} & \texttt{s(11)}\newline MT-TFM \\
\texttt{Fraction\allowbreak Numerator\allowbreak Gap\allowbreak Min} & \texttt{theta}\newline OT-SUG+MT \\
\texttt{Fraction\allowbreak Num\allowbreak Display\allowbreak Style\allowbreak Gap\allowbreak Min} & \texttt{3 \allowbreak * theta}\newline OT-SUG+MT \\
\texttt{Fraction\allowbreak Denominator\allowbreak Gap\allowbreak Min} & \texttt{theta}\newline OT-SUG+MT \\
\texttt{Fraction\allowbreak Denom\allowbreak Display\allowbreak Style\allowbreak Gap\allowbreak Min} & \texttt{3 \allowbreak * theta}\newline OT-SUG+MT \\
\texttt{Fraction\allowbreak Rule\allowbreak Thickness} & \texttt{theta}\newline MT-TFM \\
\texttt{Stack\allowbreak Top\allowbreak Shift\allowbreak Up} & \texttt{s(10)}\newline MT-TFM \\
\texttt{Stack\allowbreak Top\allowbreak Display\allowbreak Style\allowbreak Shift\allowbreak Up} & \texttt{s(8)}\newline MT-TFM \\
\texttt{Stack\allowbreak Bottom\allowbreak Shift\allowbreak Down} & \texttt{s(12)}\newline MT-TFM \\
\texttt{Stack\allowbreak Bottom\allowbreak Display\allowbreak Style\allowbreak Shift\allowbreak Down} & \texttt{s(11)}\newline MT-TFM \\
\texttt{Stack\allowbreak Gap\allowbreak Min} & \texttt{3 \allowbreak * theta}\newline OT-SUG+MT \\
\texttt{Stack\allowbreak Display\allowbreak Style\allowbreak Gap\allowbreak Min} & \texttt{7 \allowbreak * theta}\newline OT-SUG+MT \\
\texttt{Superscript\allowbreak Shift\allowbreak Up} & \texttt{s(14)}\newline MT-TFM+OT-MIG \\
\texttt{Superscript\allowbreak Shift\allowbreak Up\allowbreak Cramped} & \texttt{s(15)}\newline MT-TFM \\
\texttt{Subscript\allowbreak Shift\allowbreak Down} & \texttt{s(17)}\newline MT-TFM+OT-MIG \\
\texttt{Subscript\allowbreak Top\allowbreak Max} & \texttt{round(Fraction(4,\allowbreak 5) \allowbreak * s(5))}\newline OT-SUG+MT \\
\texttt{Superscript\allowbreak Bottom\allowbreak Min} & \texttt{round(Fraction(1,\allowbreak 4) \allowbreak * s(5))}\newline OT-SUG+MT \\
\texttt{Superscript\allowbreak Bottom\allowbreak Max\allowbreak With\allowbreak Subscript} & \texttt{round(Fraction(4,\allowbreak 5) \allowbreak * s(5))}\newline OT-SUG+MT \\
\texttt{Sub\allowbreak Superscript\allowbreak Gap\allowbreak Min} & \texttt{4 \allowbreak * theta}\newline OT-SUG+MT \\
\texttt{Upper\allowbreak Limit\allowbreak Baseline\allowbreak Rise\allowbreak Min} & \texttt{e(9)}\newline OT-MIG+MT \\
\texttt{Upper\allowbreak Limit\allowbreak Gap\allowbreak Min} & \texttt{e(11)}\newline OT-MIG+MT \\
\texttt{Lower\allowbreak Limit\allowbreak Gap\allowbreak Min} & \texttt{e(10)}\newline MT-TFM \\
\texttt{Lower\allowbreak Limit\allowbreak Baseline\allowbreak Drop\allowbreak Min} & \texttt{e(12)}\newline MT-TFM \\
\texttt{Stretch\allowbreak Stack\allowbreak Top\allowbreak Shift\allowbreak Up} & \texttt{e(9)}\newline OT-MIG+MT \\
\texttt{Stretch\allowbreak Stack\allowbreak Gap\allowbreak Above\allowbreak Min} & \texttt{e(11)}\newline OT-MIG+MT \\
\texttt{Stretch\allowbreak Stack\allowbreak Gap\allowbreak Below\allowbreak Min} & \texttt{e(10)}\newline OT-MIG+MT \\
\texttt{Stretch\allowbreak Stack\allowbreak Bottom\allowbreak Shift\allowbreak Down} & \texttt{e(12)}\newline OT-MIG+MT \\
\texttt{Overbar\allowbreak Rule\allowbreak Thickness} & \texttt{theta}\newline MT-TFM \\
\texttt{Overbar\allowbreak Vertical\allowbreak Gap} & \texttt{3 \allowbreak * theta}\newline OT-SUG+MT \\
\texttt{Overbar\allowbreak Extra\allowbreak Ascender} & \texttt{theta}\newline OT-SUG+MT \\
\texttt{Underbar\allowbreak Rule\allowbreak Thickness} & \texttt{theta}\newline MT-TFM \\
\texttt{Underbar\allowbreak Vertical\allowbreak Gap} & \texttt{3 \allowbreak * theta}\newline OT-SUG+MT \\
\texttt{Underbar\allowbreak Extra\allowbreak Descender} & \texttt{theta}\newline OT-SUG+MT \\
\texttt{Radical\allowbreak Rule\allowbreak Thickness} & \texttt{theta}\newline MT-TFM \\
\texttt{Radical\allowbreak Extra\allowbreak Ascender} & \texttt{theta}\newline OT-SUG+MT \\
\texttt{Radical\allowbreak Vertical\allowbreak Gap} & \texttt{theta + theta // 4}\newline OT-SUG+MT \\
\texttt{Radical\allowbreak Display\allowbreak Style\allowbreak Vertical\allowbreak Gap} & \texttt{theta + xh // 4}\newline OT-SUG+MT \\
\texttt{Radical\allowbreak Kern\allowbreak Before\allowbreak Degree} & \texttt{round(Fraction(5,\allowbreak 18) \allowbreak * upm)}\newline OT-SUG \\
\texttt{Radical\allowbreak Kern\allowbreak After\allowbreak Degree} & \texttt{-round(Fraction(10,\allowbreak 18) \allowbreak * upm)}\newline OT-SUG \\
\texttt{Radical\allowbreak Degree\allowbreak Bottom\allowbreak Raise\allowbreak Percent} & \texttt{60}\newline OT-SUG \\
\texttt{Script\allowbreak Percent\allowbreak Scale\allowbreak Down} & \texttt{\_pct(script\_ratio)}\newline MT-STY \\
\texttt{Script\allowbreak Script\allowbreak Percent\allowbreak Scale\allowbreak Down} & \texttt{\_pct(scriptscript\_ratio)}\newline MT-STY \\
\texttt{Min\allowbreak Connector\allowbreak Overlap} & \texttt{100}\newline OT-MIG+MT-PFB \\
\texttt{Accent\allowbreak Base\allowbreak Height} & \texttt{477}\newline OT-MIG \\
\texttt{Flattened\allowbreak Accent\allowbreak Base\allowbreak Height} & \texttt{656}\newline OT-MIG \\
\texttt{Delimited\allowbreak Sub\allowbreak Formula\allowbreak Min\allowbreak Height} & \texttt{int(display\_operator\_min\_height)}\newline MT-MIG+MT \\
\texttt{Display\allowbreak Operator\allowbreak Min\allowbreak Height} & \texttt{int(display\_operator\_min\_height)}\newline MT-TFM \\
\texttt{Math\allowbreak Leading} & \texttt{154}\newline OT-MIG \\
\texttt{Skewed\allowbreak Fraction\allowbreak Horizontal\allowbreak Gap} & \texttt{350}\newline OT-MIG \\
\texttt{Skewed\allowbreak Fraction\allowbreak Vertical\allowbreak Gap} & \texttt{102}\newline OT-MIG \\
\texttt{Space\allowbreak After\allowbreak Script} & \texttt{round(Fraction(1,\allowbreak 20) \allowbreak * upm)}\newline TeX \\
\texttt{Subscript\allowbreak Baseline\allowbreak Drop\allowbreak Min} & \texttt{round(script\_sy[19] \allowbreak * float(script\_ratio) \allowbreak * upm)}\newline MT-TFM+OT-MIG \\
\texttt{Superscript\allowbreak Baseline\allowbreak Drop\allowbreak Max} & \texttt{round(script\_sy[18] \allowbreak * float(script\_ratio) \allowbreak * upm)}\newline MT-TFM+OT-MIG \\
\end{longtable}
\endgroup

\section{Roman donor coverage}\label{sec:donors}
Minimal coverage selects 317 encoded inputs: 255 from Regular and 62 from
Bold. The table gives output and donor Unicode ranges. Each range includes both endpoints.
The selection is defined in \file{tools/donor_scope.json}.

Mathematical syntax can remap input characters. For a literal Lua math
input, use \file{\Umathchar 0 \symoperators "00E9\relax}, replacing the
Unicode value as needed. Upright Latin uses \file{\symup}; bold Latin
and digits use \file{\symbfup}.

\begingroup\small\setlength\tabcolsep{4pt}\renewcommand\arraystretch{1.12}
\begin{longtable}{@{}p{0.38\linewidth}p{0.16\linewidth}p{0.38\linewidth}@{}}
\toprule
Output Unicode & Donor face & Donor Unicode \\ \midrule \endfirsthead
\toprule
Output Unicode & Donor face & Donor Unicode \\ \midrule \endhead
\bottomrule\endfoot
\texttt{U+0022--U+0027} & Regular & \texttt{U+0022--U+0027} \\
\texttt{U+002A} & Regular & \texttt{U+002A} \\
\texttt{U+002D} & Regular & \texttt{U+002D} \\
\texttt{U+0040--U+005A} & Regular & \texttt{U+0040--U+005A} \\
\texttt{U+005E--U+007A} & Regular & \texttt{U+005E--U+007A} \\
\texttt{U+007E} & Regular & \texttt{U+007E} \\
\texttt{U+00A3} & Regular & \texttt{U+00A3} \\
\texttt{U+00A5} & Regular & \texttt{U+00A5} \\
\texttt{U+00AE} & Regular & \texttt{U+00AE} \\
\texttt{U+00B0} & Regular & \texttt{U+00B0} \\
\texttt{U+00B7} & Regular & \texttt{U+00B7} \\
\texttt{U+00C0--U+00C5} & Regular & \texttt{U+00C0--U+00C5} \\
\texttt{U+00C7--U+00CF} & Regular & \texttt{U+00C7--U+00CF} \\
\texttt{U+00D1--U+00D6} & Regular & \texttt{U+00D1--U+00D6} \\
\texttt{U+00D9--U+00DD} & Regular & \texttt{U+00D9--U+00DD} \\
\texttt{U+00E0--U+00E5} & Regular & \texttt{U+00E0--U+00E5} \\
\texttt{U+00E7--U+00EF} & Regular & \texttt{U+00E7--U+00EF} \\
\texttt{U+00F1--U+00F6} & Regular & \texttt{U+00F1--U+00F6} \\
\texttt{U+00F9--U+00FD} & Regular & \texttt{U+00F9--U+00FD} \\
\texttt{U+00FF--U+010F} & Regular & \texttt{U+00FF--U+010F} \\
\texttt{U+0112--U+0125} & Regular & \texttt{U+0112--U+0125} \\
\texttt{U+0128--U+0131} & Regular & \texttt{U+0128--U+0131} \\
\texttt{U+0134--U+0137} & Regular & \texttt{U+0134--U+0137} \\
\texttt{U+0139--U+013E} & Regular & \texttt{U+0139--U+013E} \\
\texttt{U+0143--U+0148} & Regular & \texttt{U+0143--U+0148} \\
\texttt{U+014C--U+0151} & Regular & \texttt{U+014C--U+0151} \\
\texttt{U+0154--U+0165} & Regular & \texttt{U+0154--U+0165} \\
\texttt{U+0168--U+017E} & Regular & \texttt{U+0168--U+017E} \\
\texttt{U+01FA--U+01FF} & Regular & \texttt{U+01FA--U+01FF} \\
\texttt{U+0218--U+021B} & Regular & \texttt{U+0218--U+021B} \\
\texttt{U+0237} & Regular & \texttt{U+0237} \\
\texttt{U+02C6} & Regular & \texttt{U+02C6} \\
\texttt{U+02DC} & Regular & \texttt{U+02DC} \\
\texttt{U+1E80--U+1E85} & Regular & \texttt{U+1E80--U+1E85} \\
\texttt{U+1EF2--U+1EF3} & Regular & \texttt{U+1EF2--U+1EF3} \\
\texttt{U+2044} & Regular & \texttt{U+2044} \\
\texttt{U+20AC} & Regular & \texttt{U+20AC} \\
\texttt{U+1D400--U+1D419} & Bold & \texttt{U+0041--U+005A} \\
\texttt{U+1D41A--U+1D433} & Bold & \texttt{U+0061--U+007A} \\
\texttt{U+1D7CE--U+1D7D7} & Bold & \texttt{U+0030--U+0039} \\
\end{longtable}\endgroup

\subsection{Extended coverage and eligibility}
Extended retains actually encoded Regular characters in U+0020--036F,
U+1E00--1EFF, U+2000--218F, U+2500--266F, U+301A--301B and U+FB00--FB06,
subject to MTPro2 ownership and edition restrictions. The following
ranges are excluded:
U+0370--03FF, U+0400--052F, U+2100--214F, U+2190--21FF,
U+2200--22FF, U+2300--23FF, U+25A0--25FF, U+27C0--27EF,
U+2980--2AFF and U+1D400--1D7FF. Exceptions U+2105, U+2116,
U+211E, U+2120, U+2121, U+2122 and U+212E remain subject to the same ownership and edition restrictions.
Primes U+2032--2037/U+2057, PUA U+E000--F8FF, U+FEFF/U+FFFD and
existing output names are reserved. Imported glyphs must have usable outlines and metrics.
Bold coverage remains unchanged.

The additional coverage depends on the donor pair.


\end{document}