newtx (20jun24)

git-svn-id: svn://tug.org/texlive/trunk@71571 c570f23f-e606-0410-a88d-b1316a301751

6 files changed, 270 insertions, 161 deletions

diff --git a/Master/texmf-dist/doc/fonts/newtx/README b/Master/texmf-dist/doc/fonts/newtx/README
index 3ad0699cbce..e8c037ee2d3 100644
--- a/Master/texmf-dist/doc/fonts/newtx/README
+++ b/Master/texmf-dist/doc/fonts/newtx/README
@@ -1,12 +1,18 @@
 This package, initially based on txfonts, provides many fixes and enhancements to the txfonts package, splitting it into two separate packages---newtxtext and newtxmath, which may be run independently of one another. It provides scaling, improved metrics, and other options. In particular, newtxmath offers a libertine option which substitutes Linux Libertine (provided with TeXLive and MikTeX) italic and Greek letters for the default Times letters, providing a good match for the Libertine text font, which is heavier than Computer Modern but lighter than Times, and in my experience, looks very sharp and clear on the screen.
 
-Current version: 1.744 2024-04-01
+Current version: 1.75 2024-06-20
 
 This material is subject to the LaTeX Project Public License. See http://www.ctan.org/license/lppl1.3
 for the details of that license.
 
+Changes in version 1.75
+Added code to newtx.sty and newtxmath.sty to support gelasio small caps, additional 
+figure in pdflatex and math. (Best to use gelasiomath.sty as the interface as it adds 
+supporting code and calls newtx and thereby newtxmath in the proper order
+and with matching scales.)
+
 Changes in version 1.744
-Added code to newtxtext.sty that had been remove in error from an earlier version, preventing Helvetica sans from scaling properly. (Thanks Dana Nau.)
+Added code to newtxtext.sty that had been removed in error from an earlier version, preventing Helvetica sans from scaling properly. (Thanks Dana Nau.)
 
 Changes in version 1.743
 Updated the zut[b]mi[a].{tfm,vf} needed for the erewhon option to newtxmath.
diff --git a/Master/texmf-dist/doc/fonts/newtx/newtxdoc.pdf b/Master/texmf-dist/doc/fonts/newtx/newtxdoc.pdf
index b51ec00692c..100c9256122 100644
--- a/Master/texmf-dist/doc/fonts/newtx/newtxdoc.pdf
+++ b/Master/texmf-dist/doc/fonts/newtx/newtxdoc.pdf
diff --git a/Master/texmf-dist/doc/fonts/newtx/newtxdoc.tex b/Master/texmf-dist/doc/fonts/newtx/newtxdoc.tex
index da1ae0c9771..3a18e083003 100644
--- a/Master/texmf-dist/doc/fonts/newtx/newtxdoc.tex
+++ b/Master/texmf-dist/doc/fonts/newtx/newtxdoc.tex
@@ -275,7 +275,7 @@ Aside from options that are passed along to the text and math packages, {\tt new
 You may set the scale for both text and math by setting {\tt scale} or, equivalently, {\tt scaled}. Alternatively, you may scale text and math separately by means of the options {\tt textscale[d]}, {\tt mathscale[d]}.
 \item Option {\tt otfmath} is acted upon only under a unicode engine, and specifies unicode math rather than the default---type1 math using {\tt newtxmath}. The effect is the exact opposite to {\tt no-math}, which would specify math not controlled by {\tt fontspec}.
 \item Option {\tt subscriptcorrectionfile} allows you to set your own file specifying subscript corrections.
-\item You may specify as an option to {\tt newtx} the name of any supported text package and any options other than scale[d] that are understood by that package. The default text package is {\tt newtxtext}, which need not be specified explicitly. Other valid options as of early May, 2022, are:
+\item You may specify as an option to {\tt newtx} the name of any supported text package and any options other than scale[d] that are understood by that package. The default text package is {\tt newtxtext}, which need not be specified explicitly. Other valid options as of early June, 2024, are:
 \begin{verbatim}
 libertine
 libertinus
@@ -285,6 +285,7 @@ MinionPro
 minion  		--> MinionPro
 cochineal
 garamondx
+gelasio
 baskervillef
 baskerville		--> baskervillef
 Baskerville		--> baskervillef
@@ -935,6 +936,7 @@ Don't use these unless you know what you're doing.
 \item (new in version 1.55) {\tt stix2} loads different versions of math italic and bold math italic based on \textsf{StixTwoMath} rather than \textsf{Times}---the {\tt varg} and {\tt varvw} options are disabled in this case. See the documentation to the {\tt SticksToo} package, which contains more details and some math samples.
 \item (new in version 1.60) {\tt ebgaramond} loads different versions of math italic and bold math italic based on \textsf{EBGaramond} rather than \textsf{Times}---the {\tt varg} and {\tt varvw} options are disabled in this case. See the end of Appendix 2 for an example of a preamble. You may in addition specify option {\tt  alth} which changes the shape of math h from {\ebgmi h} to {\ebgmi\char250}. (The renderings of \verb|\hslash| and \verb|\hbar| are also changed.)
 \item (new as of version 1.629) {\tt noto, notosans} load different versions of math italic and bold math italic based on \textsf{NotoSerif}, \textsf{NotoSans}  rather than \textsf{Times}. There are some intricacies involved, for which there is a separate package, {\tt notomath}, that tries to offer as simple an interface as it was possible for me to devise.
+\item (new in version 1.75) {\tt gelasio} loads math italic and math bold italic based on the {\tt gelasio} text fooonts, with Greek math letters taken from an enlarged version of those letters from {\tt XCharter}. It is best to use the separate package {\tt gelasiomath}, which adds several features specific to {\tt gelasio}.
 \item (new in version 1.62) {\tt nc, ncf} load different versions of math italic and bold math italic based on \textsf{ScholaX} (\textsf{New Century Schoolbook}) rather than \textsf{Times}---the {\tt varg} and {\tt varvw} options are disabled in this case. The difference is that option {\tt nc} loads math Greek letters from {\tt newtxmath}, while option {\tt ncf} loads math greek from an adaptation of {\tt fourier} Greek.
 \item {\tt minion} loads different versions of math italic and bold math italic based on \textsf{MinionPro} rather than \textsf{Times}---the {\tt varg} and {\tt varvw} options are disabled in this case, as the equivalent variant forms are made available by default---see the extended discussion below;
 \item {\tt garamondx} loads different versions of math italic and bold math italic based on \textsf{garamondx} rather than \textsf{Times}---the {\tt varg} and {\tt varvw} options are disabled in this case, as the equivalent variant forms are made available by default.
diff --git a/Master/texmf-dist/tex/latex/newtx/newtx.sty b/Master/texmf-dist/tex/latex/newtx/newtx.sty
index e80baff17b6..cb48d0c94d3 100644
--- a/Master/texmf-dist/tex/latex/newtx/newtx.sty
+++ b/Master/texmf-dist/tex/latex/newtx/newtx.sty
@@ -2,8 +2,8 @@
 
 
 %Package to simplify loading of newtxmath with a text font family such as newtxtext for all latex engines, or for newtxtext and an otf math package.
-\def\fileversion{1.739}
-\def\filedate{2024/02/24}
+\def\fileversion{1.75}
+\def\filedate{2024/06/18}
 \ProvidesPackage{newtx}[%
 \filedate\space v\fileversion (Michael Sharpe) latex and unicode latex support for newtxmath and a supported text font family, or for newtxtext and an otf math package]
 
@@ -95,8 +95,10 @@
 %\newif\ifntx@nofontspec 
 % must load fontspec if unicode engine
 \newif\ifntx@otfmath %\ntx@otfmathfalse % default is type1 math
+%\newdimen\ntx@dima
+%\def\tx@divide#1#2{\ntx@dima=\dimexpr 1pt * (\dimexpr #1pt\relax) / \dimexpr #2pt\relax\relax}
+%\tx@divide{300}{400}\showthe\ntx@dima
 
-\def\tx@divide#1#2{\strip@pt\dimexpr 1pt * (\dimexpr #1pt\relax) / \dimexpr #2pt\relax\relax}
 \newcommand*{\ntxtext@RM}{1}
 \newcommand*{\ntxtext@SF}{1}
 \newcommand*{\ntxtext@TT}{.88}
@@ -105,10 +107,11 @@
 \newcommand*{\ntxtext@rm}{} % not understood by libertinus-otf
 \newcommand*{\ntxtext@sf}{}% not understood by libertinus-otf
 
-\newcommand*{\ntxtext@scale}{1}
+\newcommand*{\ntxtext@scale}{0}
 \newcommand*{\ntxmath@scale}{1} 
-\DeclareOptionX{scaled}[1]{\renewcommand*{\ntxtext@scale}{#1}\renewcommand*{\ntxmath@scale}{#1}}
-\DeclareOptionX{scale}[1]{\renewcommand*{\ntxtext@scale}{#1}\renewcommand*{\ntxmath@scale}{#1}}
+%\traceon
+\DeclareOptionX{scaled}[1]{\renewcommand*{\ntxmath@scale}{#1}}
+\DeclareOptionX{scale}[1]{\renewcommand*{\ntxmath@scale}{#1}}
 \DeclareOptionX{textscale}[1]{\renewcommand*{\ntxtext@scale}{#1}}
 \DeclareOptionX{textscaled}[1]{\renewcommand*{\ntxtext@scale}{#1}}
 \DeclareOptionX{mathscale}[1]{\renewcommand*{\ntxmath@scale}{#1}}
@@ -258,6 +261,12 @@
 	\def\ntx@sc{TeXGyreScholaX@scale}%
 	\def\ntx@TF{scholax}\def\ntx@MF{nc}
 	\def\ntx@id{14}\def\ntx@minfam{minscholax}\fi}
+\DeclareOptionX{Gelasio}[true]{\@nameuse{if#1}
+	\def\ntx@sc{Gelasio@scale}\def\ntx@TF{gelasio}\def\ntx@MF{gelasio}
+	\def\ntx@id{16}\def\ntx@minfam{mingelasio}\fi}
+\DeclareOptionX{gelasio}[true]{\@nameuse{if#1}
+	\def\ntx@sc{Gelasio@scale}\def\ntx@TF{gelasio}\def\ntx@MF{gelasio}
+	\def\ntx@id{16}\def\ntx@minfam{mingelasio}\fi}
 % for stacked fractions
 \DeclareOptionX{sfracvcenter}{%
 \def\tx@sfrVC{#1}}
@@ -354,10 +363,14 @@
 %
 \newcommand{\PassMatchingScale}[1]{%
   \ifntx@iszero%
-    \@tempdima #1\p@ \@tempdima\ntxmath@scale\@tempdima		  \xdef\ntxtext@scale{\strip@pt\@tempdima}
-    \gdef\ntxtext@scaled{s*[\ntxtext@scale]}
+    \@tempdima #1\p@ \@tempdima\ntxmath@scale\@tempdima		  	\xdef\ntxtext@scale{\strip@pt\@tempdima}
+  \fi
+  \xdef\ntxtext@scaled{s*[\ntxtext@scale]}
+  \ifnum\ntx@id=16 % gelasio
+    \PassOptionsToPackage{scale=\ntxtext@scale}{\ntx@TF}%
+  \else
+    \PassOptionsToPackage{scaled=\ntxtext@scale}{\ntx@TF}%
   \fi
-  \PassOptionsToPackage{scaled=\ntxtext@scale}{\ntx@TF}%
 }
 %\fi
 
@@ -480,7 +493,7 @@
 \@ifundefined{tx@sfrTH}{\def\tx@sfrTH{58}}{} % bar thickness
 \@ifundefined{tx@sfrSC}{\def\tx@sfrSC{.8}}{} % scale defigures by this 
 \or % 12, XCharter
-\PassMatchingScale{.98}
+\PassMatchingScale{.935}
 \@ifundefined{tx@xht}{\def\tx@xht{481}}{} % lowercase letters
 \@ifundefined{tx@deht}{\def\tx@deht{382}}{} % denominator figures ht
 \@ifundefined{tx@nubase}{\def\tx@nubase{295}}{} % baseline of numerators
@@ -519,6 +532,16 @@
 \@ifundefined{tx@sfrVS}{\def\tx@sfrVS{106}}{} % space above/below bar
 \@ifundefined{tx@sfrTH}{\def\tx@sfrTH{70}}{} % bar thickness
 \@ifundefined{tx@sfrSC}{\def\tx@sfrSC{.8}}{} % scale defigures by this
+\or % 16, gelasio
+\PassMatchingScale{.92}
+\@ifundefined{tx@xht}{\def\tx@xht{485}}{} % lowercase letters
+\@ifundefined{tx@deht}{\def\tx@deht{473}}{} % denominator figures 
+\@ifundefined{tx@nubase}{\def\tx@nubase{246}}{} % baseline of numerators
+\@ifundefined{tx@debase}{\def\tx@debase{0}}{} % baseline of denoms
+\@ifundefined{tx@sfrVC}{\def\tx@sfrVC{360}}{}% vertical center of sfrac
+\@ifundefined{tx@sfrVS}{\def\tx@sfrVS{106}}{} % space above/below bar
+\@ifundefined{tx@sfrTH}{\def\tx@sfrTH{70}}{} % bar thickness
+\@ifundefined{tx@sfrSC}{\def\tx@sfrSC{.75}}{} % scale defigures by this
 \fi
 \PassOptionsToPackage{\ntx@MF}{newtxmath}
 
@@ -526,50 +549,55 @@
 %\ifblank{\ntx@textopt}{}%
 %{\PassOptionsToPackage{\ntx@textopt}{\ntx@TF}}
 
-\newdimen\tx@sixem\tx@sixem6pt % for checking if a number refers to ex
-\newdimen\tx@y \newdimen\tx@x 
-
-% convert numerical entry that may be multiple of ex (<6) or em value
-\def\tx@toex#1{\tx@x#1pt \ifdim\tx@x<\z@\tx@y-\tx@x\else\tx@y\tx@x\fi \ifdim\tx@y>\tx@sixem \tx@x\dimexpr 1pt * (\dimexpr #1pt\relax) / \dimexpr \tx@xht pt\relax\relax\fi}
-
-\newdimen\tx@tmpdima \newdimen\tx@tmpdimb  \newdimen\tx@tmpdimc
-\newdimen\tx@tmpdimd \newdimen\tx@tmpdime \newdimen\tx@tmpdimf
-\newdimen\tx@dimA
-\newdimen\tx@dimAA \newdimen\tx@dimB \newdimen\tx@dimBB 
-\newdimen\tx@dimC % vertical center
-% double cap letters for below bar, single cap for above
-\tx@toex\tx@sfrVC\tx@dimC\tx@x %Vertical center of fraction
-\tx@toex\tx@sfrTH\tx@tmpdimb\tx@x % bar thickness
-\tx@tmpdime.5\tx@tmpdimb % half bar thickness
-\tx@toex\tx@sfrVS\tx@tmpdimc\tx@x% vertical space
-\tx@toex\tx@deht\tx@tmpdimd\tx@x % height of unscaled figures
-\tx@tmpdimd\tx@sfrSC\tx@tmpdimd % height of scaled figures
-\tx@toex\tx@debase\tx@tmpdimf\tx@x % unscaled baseline of de figures
-\tx@toex\tx@nubase\tx@tmpdima\tx@x % unscaled baseline of nu figures
-\tx@tmpdima\tx@sfrSC\tx@tmpdima % scaled nu baseline
-\tx@tmpdimf\tx@sfrSC\tx@tmpdimf % scaled de baseline
-\tx@dimA\tx@dimC
-\advance\tx@dimA by \tx@tmpdime % top of bar
-\tx@dimAA\tx@dimC
-\advance\tx@dimAA by -\tx@tmpdime % bottom of bar
-\tx@dimB\tx@dimA
-\advance\tx@dimB by \tx@tmpdimc % top figure baseline
-\advance\tx@dimB by -\tx@tmpdima
-\tx@dimBB\tx@dimAA
-\advance\tx@dimBB by -\tx@tmpdimc % 
-\advance\tx@dimBB by -\tx@tmpdimd % bottom figure baseline
-\advance\tx@dimBB by -\tx@tmpdimf
+%\newdimen\tx@sixem\tx@sixem6pt % for checking if a number refers to ex
+\newdimen\tx@x \newdimen\tx@y 
+
+% convert numerical entry that may be multiple of ex  or em value
+%\def\tx@toex#1{\tx@x#1pt \ifdim\tx@x<\z@\tx@y=-\tx@x\else\tx@y=\tx@x\fi \ifdim\tx@y>\tx@sixem \tx@x=\dimexpr 1pt * (\dimexpr #1pt\relax) / \dimexpr \tx@xht pt\relax\relax\fi}
+%\def\tx@chkex#1{\@tx@chkex#1ex\@nil}
+%\def\@tx@chkex#1ex#2\@nil{\ifthenelse{\equal{#2}{}}{\tx@toex #1}{\tx@x=#1ex}} # defines dimen \tx@x
+\def\tx@toex#1{\tx@x=\dimexpr 1pt * (\dimexpr #1pt\relax) / \dimexpr \tx@xht pt\relax\relax}
+%\def\tx@divide#1#2{\ntx@dima=\dimexpr 1pt * (\dimexpr #1 pt\relax) / \dimexpr #2pt\relax\relax}
+
+\newdimen\tx@tmpdima \newdimen\tx@tmpdimb  \newdimen\tx@tmpdimC
+\newdimen\tx@dimX \newdimen\tx@dimY \newdimen\tx@dimZ
+\newdimen\tx@numrbase \newdimen\tx@dnombase
+\newdimen\tx@bartop \newdimen\tx@barbot
+\newdimen\tx@bartopex \newdimen\tx@barbotex
+\setlength\tx@tmpdimb{\tx@sfrTH pt} % bar thickness
+\setlength\tx@tmpdima{\tx@deht pt} % de figure ht
+\setlength\tx@tmpdimC{\tx@sfrVC pt} % bar center height
+\tx@bartop=\tx@tmpdimC
+\advance\tx@bartop by .5\tx@tmpdimb % top of bar
+\tx@toex{\strip@pt\tx@bartop}\tx@bartopex=\tx@x % same, in ex units
+\tx@barbot=\tx@bartop
+\advance\tx@barbot by -\tx@tmpdimb % bottom of bar
+\tx@toex{\strip@pt\tx@barbot}\tx@barbotex=\tx@x % same, in ex units
+\tx@dimX=\tx@bartop
+\advance\tx@dimX by \tx@sfrVS pt % bottom of numr
+\tx@dimY=\tx@barbot
+\advance\tx@dimY by -\tx@sfrVS pt % top of dnom
+\advance\tx@dimY by -\tx@sfrSC\tx@tmpdima % baseline of dnom
+
+\tx@toex{\strip@pt\tx@dimX}\tx@numrbase=\tx@x % num baseline in ex units
+\tx@toex{\strip@pt\tx@dimY}\tx@dnombase=\tx@x % dnom baseline in ex units
+
 \newcommand*{\textsfrac}[3][]{% like \textsfrac[1]{23}{34}
 \mbox{%
     \ifthenelse{\not\equal{#1}{}}%Test for integer portion [optional #1]
       {\textlf{#1}\kern.04em}{}%         
 	{\hmode@bgroup%
 \ooalign{%
-	\setbox0=\hbox{\scalefont{\tx@sfrSC}\nustyle#2}%
-	\hfil \raise\strip@pt\tx@dimB ex\box0\hfil \crcr%
-	\leaders\hrule height \strip@pt\tx@dimA ex depth -\strip@pt\tx@dimAA ex\hfill \crcr%
-	\setbox1=\hbox{\scalefont{\tx@sfrSC}\destyle#3}%
-	\hfil\raise\strip@pt\tx@dimBB ex\box1\hfil}%
+%  \ifnum\ntx@id=16\relax
+	\setbox0=\hbox{\textsmde{#2}}% scaled down denom, baseline 0
+	\tx@dimZ=\strip@pt\tx@numrbase ex%
+	\hfil \raise \tx@dimZ \box0\hfil \crcr%
+	\tx@dimX=\strip@pt\tx@bartopex ex%
+	\tx@dimY=-\strip@pt\tx@barbotex ex%
+	\leaders\hrule height \tx@dimX depth \tx@dimY \hfill \crcr%
+	\setbox1=\hbox{\textsmde{#3}}%
+  \tx@dimZ=\strip@pt\tx@dnombase ex	
+  \hfil\raise \tx@dimZ \box1\hfil}%
 \egroup}}
 }
 
@@ -611,7 +639,7 @@
 \mbox{%
     \ifthenelse{\not\equal{#1}{}}%Test for integer portion [optional #1]
       {\textlf{#1}\kern.02em}{}%         
-{\ifntx@otftext\addfontfeature{RawFeature=+frac}#2/#3}
+\ifntx@otftext\addfontfeature{RawFeature=+frac}#2/#3
 \else\textnu{#2}{\normalfont\fontencoding{TS1}\selectfont\char"2F}%
 \textde{#3}\fi}
 }}}
@@ -699,6 +727,60 @@
 \or % 13, stickstoo
 \or % 14, scholax
 \or % 15, scholax/fourier
+\or % 16, gelasio
 \fi
-
+% galasio.sty does not offer macros for numerators, denominators or inferiors
+%\ifgelasio@otf
+%  \providecommand\nufigures{%
+%  \addfontfeatures{VerticalPosition=Numerator}}
+%  \providecommand\defigures{%
+%  \addfontfeatures{VerticalPosition=Denominator}}
+%  \providecommand\infigures{%
+%  \addfontfeatures{VerticalPosition=Inferior}}
+%  
+%  \DeclareTextFontCommand{\textnum}{\nufigures}
+%  \DeclareTextFontCommand{\textde}{\defigures}
+%  \DeclareTextFontCommand{\textinf}{\infigures}
+%  \@ifundefined{tx@sfrSC}{}{%
+%  \newcommand*{\textsmde}[1]{%
+%  \setbox0=\hbox{\scalebox\tx@sfrSC{\textde{#1}}}\box0}}
+%
+%\else % type1  --we define \text.. by lowering \textsu
+%  \newbox\tx@box
+%  \newcommand*{\textde}[1]{{\setbox0=\hbox{\textsu{#1}}\setbox1=\hbox{\raise -.763ex \box0}\dp1=0pt\ht1=.977ex\box1\relax}}
+% 
+%  \providecommand*\textnum[1]{\raisebox{.507ex}{\textde{#1}}}
+%  \let\textnu\textnum
+%%  \providecommand*\textde[1]{{\setbox0=\hbox{\textsu{#1}}%
+%%  \setbox1=\hbox{\lower.763ex\box0}\dp0=0pt\relax\box1\relax}}
+%  %\raisebox{-.763ex}{\textsu{#1}}}
+%   % the following will be used only by \textsfrac
+%  \@ifundefined{tx@sfrSC}{}{%
+%  \newcommand*{\textsmde}[1]{%
+%  \setbox0=\hbox{\scalebox\tx@sfrSC{\textde{#1}}}\box0}%
+%    }
+%\fi
+%\DeclareTextFontCommand{\textlf}{\liningnums}
+%\fi % end ifcase
+\ifnum\ntx@id=16\relax
+\else % create \textsmsmde for other than minion and gelasio
+% We move the small font to the text baseline and scale it by \tx@sfrSC, for use only in the \textsfrac macro.
+\ifnum\ntx@id=4\relax
+\else
+  \ifnum\tx@debase=0
+    \newcommand*{\textsmde}[1]{%
+    \setbox0=\hbox{\scalebox\tx@sfrSC{\textde{#1}}}\box0}
+  \else
+    \newdimen\tx@u \newdimen\tx@v
+    \tx@u=-\tx@debase pt
+    \tx@toex{\strip@pt\tx@u}\tx@y=\tx@x
+    %\showthe\tx@y
+    \tx@v=\strip@pt\tx@y ex
+    \newcommand*{\textsmde}[1]{%
+    \setbox2=\hbox{\textde{#1}}%
+    \setbox1=\hbox{\raise \tx@v \box2}%
+    \setbox0=\hbox{\scalebox{\tx@sfrSC}{\box1}}\box0}
+  \fi %\ifnum\tx@debase=0
+\fi %\ifnum\ntx@id=4
+\fi %\ifnum\ntx@id=16
 \endinput
diff --git a/Master/texmf-dist/tex/latex/newtx/newtxmath.sty b/Master/texmf-dist/tex/latex/newtx/newtxmath.sty
index 86fa898e14c..020f9ff08cf 100644
--- a/Master/texmf-dist/tex/latex/newtx/newtxmath.sty
+++ b/Master/texmf-dist/tex/latex/newtx/newtxmath.sty
@@ -1,5 +1,5 @@
 \NeedsTeXFormat{LaTeX2e}[1997/06/01]
-%
+% 
 %:ams
 % Based on Young Ryu's txfonts.sty, v.3.2.1
 % Text and math are now loaded in separate sty files---the text
@@ -11,8 +11,8 @@
 % of glyph collisions.
 % These modifications are by Michael Sharpe, msharpe at ucsd dot edu
 
-\def\fileversion{1.742}
-\def\filedate{2024/03/06}
+\def\fileversion{1.75}
+\def\filedate{2024/06/18}
 \ProvidesPackage{newtxmath}[\filedate\space v\fileversion ]
 \@ifundefined{newtxmathLoaded}{}{\endinput}
 
@@ -43,9 +43,13 @@
 \newcount\tx@cntz
 \input{binhex}
 
-\let\ntxmath@scaled\@empty\def\tx@scale{1}
+\let\ntxmath@scaled\@empty
+\@ifundefined{ntxmathscale}{\def\ntxmathscale{1}}{}
+\def\tx@scale{\ntxmathscale}
+\def\ntxmath@scaled{s*[\tx@scale]}
 \define@key{ntxmath}{scaled}[1.0]{\def\tx@scale{#1}\def\ntxmath@scaled{s*[#1]}}
 \define@key{ntxmath}{scale}[1.0]{\def\tx@scale{#1}\def\ntxmath@scaled{s*[#1]}}
+
 \def\ntxmath@vecsep{.25ex}
 \define@key{ntxmath}{vecsep}[.25ex]{\def\ntxmath@vecsep{#1}}
 %:
@@ -72,6 +76,7 @@
 \newif\iftx@largelibfigs \newif\iftx@frenchm % french math
 \newif\iftx@minion \newif\iftx@libaltvw \newif\iftx@bv \newif\iftx@ut
 \newif\iftx@ba % new BaskervilleF fonts
+\newif\iftx@gel % GelasioMath
 \newif\iftx@ch \newif\iftx@coch \newif\iftx@nc % NewCenturySchoolbook
 \newif\iftx@ot % use OT1 for operators
 \newif\iftx@ntxmath \tx@ntxmathtrue % default is Times operators and math italic
@@ -88,7 +93,7 @@
 \newif\iftx@nootone % do not switch to OT1 for operators
 \newif\iftx@digits % use digits from letters
 \newif\iftx@isenh % the math style is enhanced and can make use of new macros
-% Currently (2019-12-11) only txmath, libertine, XCharter, ebgaramond, stickstoo, utopia, nc, minion and cochineal have been enhanced.
+% Currently (2019-12-11) only txmath, libertine, XCharter, aramond, stickstoo, utopia, nc, minion and cochineal have been enhanced.
 \newif\iftx@ebgalth
 \newif\iftx@cochf % switch to long f
 \newif\iftx@cochrho % switch to long rho
@@ -229,6 +234,7 @@
 \DeclareOption{Heuristica}{\tx@uttrue\tx@ntxmathfalse}
 \DeclareOption{Erewhon}{\tx@uttrue\tx@ntxmathfalse}
 \DeclareOption{erewhon}{\tx@uttrue\tx@ntxmathfalse}
+\DeclareOption{gelasio}{\tx@geltrue\tx@ntxmathfalse}
 \DeclareOption{charter}{\tx@chtrue\tx@ntxmathfalse}
 \DeclareOption{xcharter}{\tx@chtrue\tx@ntxmathfalse}
 \DeclareOption{cmintegrals}{\tx@cminttrue}
@@ -303,7 +309,6 @@ amssymbols,uprightGreek,nosubscriptcorrection}
 %    \let\NotoSans@scale\NotoSerif@scale
 %    \let\NotoSansMono@scale\NotoSerif@scale
 %\fi
-
 % Check whether math face is enhanced
 \iftx@ntxmath\tx@isenhtrue\else
   \iftx@lbtn\tx@isenhtrue\else
@@ -316,6 +321,8 @@ amssymbols,uprightGreek,nosubscriptcorrection}
                 \iftx@minion\tx@isenhtrue\else
                   \iftx@noto\tx@isenhtrue\else
                     \iftx@notosans\tx@isenhtrue\else
+                      \iftx@gel\tx@isenhtrue\else
+                      \fi
                     \fi
                   \fi
                 \fi
@@ -327,6 +334,7 @@ amssymbols,uprightGreek,nosubscriptcorrection}
     \fi
   \fi
 \fi
+
 \AtEndPreamble{%
 %\traceon
 \iftx@sbc
@@ -358,6 +366,7 @@ amssymbols,uprightGreek,nosubscriptcorrection}
 \iftx@bv\let\X@s@v@rg\@undefined\fi
 \iftx@ba\let\X@s@v@rg\@undefined\fi
 \iftx@stxtwo\let\X@s@v@rg\@undefined\fi
+\iftx@gel\let\X@s@v@rg\@undefined\fi
 % altnu, liby and largelibfigs valid only with libertin[e,us]
 \iftx@lbtn\else\tx@altnufalse\tx@largelibfigsfalse\tx@libyfalse\fi
 % Use existing text fonts for operators, mathrm, etc
@@ -431,108 +440,116 @@ amssymbols,uprightGreek,nosubscriptcorrection}
 %%%%%%%%%%%%%%%
 
 \iftx@lbtn
-  \iftx@subsfile\else\def\tx@subs{newtx-libertine-subs.tex}\fi
-  \DeclareSymbolFont{letters}{OML}{nxlmi}{m}{it}
-  \SetSymbolFont{letters}{bold}{OML}{nxlmi}{b}{it}
-  \DeclareFontSubstitution{OML}{nxlmi}{m}{it}
+ \iftx@subsfile\else\def\tx@subs{newtx-libertine-subs.tex}\fi
+ \DeclareSymbolFont{letters}{OML}{nxlmi}{m}{it}
+ \SetSymbolFont{letters}{bold}{OML}{nxlmi}{b}{it}
+ \DeclareFontSubstitution{OML}{nxlmi}{m}{it}
 \else
-  \iftx@minion
-    \iftx@subsfile\else\def\tx@subs{newtx-minion-subs.tex}\fi
-    \DeclareSymbolFont{letters}{OML}{zmnmi}{m}{it}
-    \SetSymbolFont{letters}{bold}{OML}{zmnmi}{b}{it}
-    \DeclareFontSubstitution{OML}{zmnmi}{m}{it}  
+ \iftx@minion
+  \iftx@subsfile\else\def\tx@subs{newtx-minion-subs.tex}\fi
+  \DeclareSymbolFont{letters}{OML}{zmnmi}{m}{it}
+  \SetSymbolFont{letters}{bold}{OML}{zmnmi}{b}{it}
+  \DeclareFontSubstitution{OML}{zmnmi}{m}{it}  
+ \else
+  \iftx@gm
+   \iftx@subsfile\else\def\tx@subs{newtx-garamond-subs.tex}\fi
+   \DeclareSymbolFont{letters}{OML}{zgmmi}{m}{it}
+   \SetSymbolFont{letters}{bold}{OML}{zgmmi}{b}{it}
+   \DeclareFontSubstitution{OML}{zgmmi}{m}{it}  
   \else
-    \iftx@gm
-      \iftx@subsfile\else\def\tx@subs{newtx-garamond-subs.tex}\fi
-      \DeclareSymbolFont{letters}{OML}{zgmmi}{m}{it}
-      \SetSymbolFont{letters}{bold}{OML}{zgmmi}{b}{it}
-      \DeclareFontSubstitution{OML}{zgmmi}{m}{it}  
+   \iftx@bv
+    \iftx@subsfile\else\def\tx@subs{newtx-baskervald-subs.tex}\fi
+    \DeclareSymbolFont{letters}{OML}{zbvmi}{m}{it}
+    \SetSymbolFont{letters}{bold}{OML}{zbvmi}{b}{it}
+    \DeclareFontSubstitution{OML}{zbvmi}{m}{it}  
+   \else
+    \iftx@ut
+     \iftx@subsfile\else\def\tx@subs{newtx-utopia-subs.tex}\fi
+     \DeclareSymbolFont{letters}{OML}{zutmi}{m}{it}
+     \SetSymbolFont{letters}{bold}{OML}{zutmi}{b}{it}
+     \DeclareFontSubstitution{OML}{zutmi}{m}{it}          
     \else
-      \iftx@bv
-       \iftx@subsfile\else\def\tx@subs{newtx-baskervald-subs.tex}\fi
-       \DeclareSymbolFont{letters}{OML}{zbvmi}{m}{it}
-        \SetSymbolFont{letters}{bold}{OML}{zbvmi}{b}{it}
-        \DeclareFontSubstitution{OML}{zbvmi}{m}{it}  
+     \iftx@ch
+      \iftx@subsfile\else\def\tx@subs{newtx-xcharter-subs.tex}\fi
+      \DeclareSymbolFont{letters}{OML}{zchmi}{m}{it}
+      \SetSymbolFont{letters}{bold}{OML}{zchmi}{b}{it}
+      \DeclareFontSubstitution{OML}{zchmi}{m}{it}          
+     \else
+      \iftx@coch
+       \iftx@subsfile\else\def\tx@subs{newtx-cochineal-subs.tex}\fi
+       \DeclareSymbolFont{letters}{OML}{zcochmi}{m}{it}
+       \SetSymbolFont{letters}{bold}{OML}{zcochmi}{b}{it}
+       \DeclareFontSubstitution{OML}{zcochmi}{m}{it}           
       \else
-        \iftx@ut
-          \iftx@subsfile\else\def\tx@subs{newtx-utopia-subs.tex}\fi
-          \DeclareSymbolFont{letters}{OML}{zutmi}{m}{it}
-          \SetSymbolFont{letters}{bold}{OML}{zutmi}{b}{it}
-          \DeclareFontSubstitution{OML}{zutmi}{m}{it}          
+       \iftx@ba
+		\iftx@subsfile\else\def\tx@subs{newtx-baskervillef-subs.tex}\fi
+        \DeclareSymbolFont{letters}{OML}{zbami}{m}{it}
+        \SetSymbolFont{letters}{bold}{OML}{zbami}{b}{it}
+        \DeclareFontSubstitution{OML}{zbami}{m}{it}
+       \else
+        \iftx@stxtwo
+         \iftx@subsfile\else\def\tx@subs{newtx-stickstoo-subs.tex}\fi
+         \DeclareSymbolFont{letters}{OML}{ntxstx2mi}{m}{it}
+         \SetSymbolFont{letters}{bold}{OML}{ntxstx2mi}{b}{it}
+         \DeclareFontSubstitution{OML}{ntxstx2mi}{m}{it}                
         \else
-          \iftx@ch
-            \iftx@subsfile\else\def\tx@subs{newtx-xcharter-subs.tex}\fi
-            \DeclareSymbolFont{letters}{OML}{zchmi}{m}{it}
-            \SetSymbolFont{letters}{bold}{OML}{zchmi}{b}{it}
-            \DeclareFontSubstitution{OML}{zchmi}{m}{it}          
-          \else
-            \iftx@coch
-              \iftx@subsfile\else\def\tx@subs{newtx-cochineal-subs.tex}\fi
-              \DeclareSymbolFont{letters}{OML}{zcochmi}{m}{it}
-              \SetSymbolFont{letters}{bold}{OML}{zcochmi}{b}{it}
-              \DeclareFontSubstitution{OML}{zcochmi}{m}{it}           
+         \iftx@ebgm
+          \iftx@subsfile\else\def\tx@subs{newtx-ebgaramond-subs.tex}\fi
+      	  \DeclareSymbolFont{letters}{OML}{ntxebgmi}{m}{it}
+      	  \SetSymbolFont{letters}{bold}{OML}{ntxebgmi}{b}{it}
+      	  \DeclareFontSubstitution{OML}{ntxebgmi}{m}{it}  
+         \else
+          \iftx@nc
+           \iftx@fourier
+            \iftx@subsfile\else\def\tx@subs{newtx-ncf-subs.tex}\fi
+      		\DeclareSymbolFont{letters}{OML}{zncfmi}{m}{it}
+      		\SetSymbolFont{letters}{bold}{OML}{zncfmi}{b}{it}
+      		\DeclareFontSubstitution{OML}{zncfmi}{m}{it}
+		   \else  
+            \iftx@subsfile\else\def\tx@subs{newtx-nc-subs.tex}\fi
+      		\DeclareSymbolFont{letters}{OML}{zncmi}{m}{it}
+      		\SetSymbolFont{letters}{bold}{OML}{zncmi}{b}{it}
+      		\DeclareFontSubstitution{OML}{zncmi}{m}{it}
+		   \fi
+ 		  \else
+           \iftx@noto
+            \iftx@subsfile\else\def\tx@subs{newtx-noto-subs.tex}\fi
+            \DeclareSymbolFont{letters}{OML}{notomi}{m}{it}
+            \SetSymbolFont{letters}{bold}{OML}{notomi}{b}{it}
+            \DeclareFontSubstitution{OML}{notomi}{m}{it}
+           \else
+            \iftx@notosans
+             \iftx@subsfile\else\def\tx@subs{newtx-notosans-subs.tex}\fi
+             \DeclareSymbolFont{letters}{OML}{notosansmi}{m}{it}
+             \SetSymbolFont{letters}{bold}{OML}{notosansmi}{b}{it}
+             \DeclareFontSubstitution{OML}{notosansmi}{m}{it}
             \else
-              \iftx@ba
-			    \iftx@subsfile\else\def\tx@subs{newtx-baskervillef-subs.tex}\fi
-                \DeclareSymbolFont{letters}{OML}{zbami}{m}{it}
-                \SetSymbolFont{letters}{bold}{OML}{zbami}{b}{it}
-                \DeclareFontSubstitution{OML}{zbami}{m}{it}
-              \else
-                \iftx@stxtwo
-                  \iftx@subsfile\else\def\tx@subs{newtx-stickstoo-subs.tex}\fi
-                  \DeclareSymbolFont{letters}{OML}{ntxstx2mi}{m}{it}
-                  \SetSymbolFont{letters}{bold}{OML}{ntxstx2mi}{b}{it}
-                  \DeclareFontSubstitution{OML}{ntxstx2mi}{m}{it}                
-                \else
-                  \iftx@ebgm
-                    \iftx@subsfile\else\def\tx@subs{newtx-ebgaramond-subs.tex}\fi
-      				\DeclareSymbolFont{letters}{OML}{ntxebgmi}{m}{it}
-      				\SetSymbolFont{letters}{bold}{OML}{ntxebgmi}{b}{it}
-      				\DeclareFontSubstitution{OML}{ntxebgmi}{m}{it}  
-                  \else
-                    \iftx@nc
-                      \iftx@fourier
-                        \iftx@subsfile\else\def\tx@subs{newtx-ncf-subs.tex}\fi
-      				    \DeclareSymbolFont{letters}{OML}{zncfmi}{m}{it}
-      				    \SetSymbolFont{letters}{bold}{OML}{zncfmi}{b}{it}
-      				    \DeclareFontSubstitution{OML}{zncfmi}{m}{it}
-				      \else  
-                        \iftx@subsfile\else\def\tx@subs{newtx-nc-subs.tex}\fi
-      				    \DeclareSymbolFont{letters}{OML}{zncmi}{m}{it}
-      				    \SetSymbolFont{letters}{bold}{OML}{zncmi}{b}{it}
-      				    \DeclareFontSubstitution{OML}{zncmi}{m}{it}
-				      \fi
-                    \else
-                      \iftx@noto
-                        \iftx@subsfile\else\def\tx@subs{newtx-noto-subs.tex}\fi
-                        \DeclareSymbolFont{letters}{OML}{notomi}{m}{it}
-                        \SetSymbolFont{letters}{bold}{OML}{notomi}{b}{it}
-                        \DeclareFontSubstitution{OML}{notomi}{m}{it}
-                      \else
-                        \iftx@notosans
-                          \iftx@subsfile\else\def\tx@subs{newtx-notosans-subs.tex}\fi
-                          \DeclareSymbolFont{letters}{OML}{notosansmi}{m}{it}
-                          \SetSymbolFont{letters}{bold}{OML}{notosansmi}{b}{it}
-                          \DeclareFontSubstitution{OML}{notosansmi}{m}{it}
-                        \else
-                          %\iftx@subsfile\else\def\tx@subs{newtx-subs.tex}\fi
-                          \DeclareSymbolFont{letters}{OML}{ntxmi}{m}{it}
-                          \SetSymbolFont{letters}{bold}{OML}{ntxmi}{b}{it}
-                          \DeclareFontSubstitution{OML}{ntxmi}{m}{it}
-                        \fi
-                      \fi
-                    \fi  
-                  \fi  
-                \fi
-              \fi
+			 \iftx@gel
+			  \iftx@subsfile\else\def\tx@subs{newtx-gel-subs.tex}\fi
+      		  \DeclareSymbolFont{letters}{OML}{zgelmi}{m}{it}
+      		  \SetSymbolFont{letters}{bold}{OML}{zgelmi}{b}{it}
+      		  \DeclareFontSubstitution{OML}{zgelmi}{m}{it}
+             \else
+              %\iftx@subsfile\else\def\tx@subs{newtx-subs.tex}\fi
+              \DeclareSymbolFont{letters}{OML}{ntxmi}{m}{it}
+              \SetSymbolFont{letters}{bold}{OML}{ntxmi}{b}{it}
+              \DeclareFontSubstitution{OML}{ntxmi}{m}{it}
+             \fi
             \fi
-          \fi  
-        \fi
+           \fi
+          \fi
+         \fi  
+        \fi  
+       \fi
       \fi
-    \fi
+     \fi
+    \fi  
+   \fi
   \fi
+ \fi
 \fi
 
+
 \iftx@isenh
 \iftx@digits
     \DeclareMathSymbol{0}{\mathord}{letters}{132}
@@ -976,14 +993,6 @@ amssymbols,uprightGreek,nosubscriptcorrection}
 \re@DeclareMathAccent{\dddot}{\mathord}{symbols}{168}
 \re@DeclareMathAccent{\ddddot}{\mathord}{symbols}{200}
 \iftx@tma
-  \re@DeclareMathAccent{\grave}{\mathord}{symbols}{158}
-  \re@DeclareMathAccent{\acute}{\mathord}{symbols}{159}
-  \re@DeclareMathAccent{\hat}{\mathord}{symbols}{160}
-  \re@DeclareMathAccent{\tilde}{\mathord}{symbols}{161}
-  \re@DeclareMathAccent{\bar}{\mathord}{symbols}{162}
-  \re@DeclareMathAccent{\breve}{\mathord}{symbols}{163}
-  \re@DeclareMathAccent{\mathring}{\mathord}{symbols}{166}
-  \re@DeclareMathAccent{\check}{\mathord}{symbols}{167}
 \else
  \iftx@ot %no change needed if using OT1 for operators
  \else
diff --git a/Master/texmf-dist/tex/latex/newtx/untxmia.fd b/Master/texmf-dist/tex/latex/newtx/untxmia.fd
index 4e77bfc7e3c..212e5b2386e 100644
--- a/Master/texmf-dist/tex/latex/newtx/untxmia.fd
+++ b/Master/texmf-dist/tex/latex/newtx/untxmia.fd
@@ -5,7 +5,7 @@
 %THIS FILE SHOULD BE PUT IN A TEX INPUTS DIRECTORY
 
 \ProvidesFile{untxmia.fd}
-   [2018/04/14 Fontinst v1.933 font definitions for U/ntxmia.]
+   [2024/04/09 Fontinst v1.933 font definitions for U/ntxmia.]
 
 \expandafter\ifx\csname ntxmath@scaled\endcsname\relax
   \let\ntxmath@scaled\@empty%
@@ -105,12 +105,22 @@
                         <-> \ntxmath@scaled notosansbmia
                      }{}
   					\else
-                      \DeclareFontShape{U}{ntxmia}{m}{it}{
+					   \iftx@gel
+                         \DeclareFontShape{U}{ntxmia}{m}{it}{
+                        <-> \ntxmath@scaled zgelmia
+                       }{}    
+                         \DeclareFontShape{U}{ntxmia}{b}{it}{
+                        <-> \ntxmath@scaled zgelbmia
+                     }{}
+  					  \else
+
+                        \DeclareFontShape{U}{ntxmia}{m}{it}{
                         <-> \ntxmath@scaled ntxmia
                       }{}    
-                      \DeclareFontShape{U}{ntxmia}{b}{it}{
+                        \DeclareFontShape{U}{ntxmia}{b}{it}{
                         <-> \ntxmath@scaled ntxbmia
                       }{}
+                      \fi
                     \fi  
                   \fi
 				\fi