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-rw-r--r--fonts/newtx/doc/newtxdoc.tex3
1 files changed, 2 insertions, 1 deletions
diff --git a/fonts/newtx/doc/newtxdoc.tex b/fonts/newtx/doc/newtxdoc.tex
index 00a09e4681..c35a35c8db 100644
--- a/fonts/newtx/doc/newtxdoc.tex
+++ b/fonts/newtx/doc/newtxdoc.tex
@@ -73,7 +73,7 @@ the new package is split into separate text and math packages that do not need t
\item macros have been added to bring the calls to Greek symbols more into conformity with \textsc{psnfss} and Mathtime Pro~2;
\item problems using \textsc{ams} macro packages before \textsf{txfonts} are settled;
\item \verb|\coloneq| and \verb|\eqcolon| now point to the correct glyphs;
-\item The problem with the {\tt ogonek} accent and tabular environments (bad definition of \verb|\k|) is fixed;
+\item The problem with the {\tt ogonek} accent and tabular environments (bad definition of \verb|\k|) is fixed: (the definition of \verb|\k| is removed as of version 1.628, being no longer of use);
\item The default encoding for \textsf{newtxtext} is now T$1$, but support is offered also for OT$1$ and LY$1$. As some add-on packages are available only in T$1$, that seems the best current choice.
\item Sans serif is by default taken from TeXGyreHeros, and by default at 90\% of the scale factor (set by {\tt scaled}, default value {\tt1}). The option {\tt helvratio=.98} will change that to 98\%.
\item \verb|\varkappa| $\varkappa$ has been moved from {\tt AMSb} to {\tt lettersA}, and is now accompanied by an upright form \verb|\upvarkappa| $\upvarkappa$ which behaves as it should when using the {\tt frenchmath} option.
@@ -273,6 +273,7 @@ causes no error, unlike the same combination with {\tt txfonts}, but does nothin
\item Option {\tt nonewtxmathopt} (or {\tt scale}, a mistake I cannot now erase) causes newtxmath to not make use of the optical math sizes (7{\tt pt}, 5{\tt pt}), as preferred by some.
\item Option {\tt subscriptcorrection} enables the special spacing of some subscripts. (The default is {\tt nosubscriptcorrection}.)
\item The \textsf{newtxmath} package contains three different Blackboard Bold alphabets, where original \textsf{txfonts} contained two. The default, triggered by \verb|\mathbb{}|, takes its glyphs from the font which replaces {\tt msbm} and has the same overall appearance of a hollowed-out text font, which I find neither bold nor blackboard-like. The second option, taken from \textsf{txfonts}, is triggered by \verb|\varmathbb{}|, is more geometric and, in my opinion, preferable but not optimal. The option {\tt varbb} makes \verb|\mathbb{}| synonymous with \verb|\varmathbb{}|. The third option is the double-struck glyphs from the STIX collection. See the expanded discussion below.
+\item {\tt noOT1} affects only those text-math combinations where {\tt operators} is defined by default to OT1 with Greek uppercase letters. It causes {\tt operators} to keep the same encoding as in tex, allowing operatornames to use accented charaters, but losing Greek uppercase.
\item {\tt nosymbolsc} causes the package to not load the {\tt symbolsC} fonts, saving a math family. (This font contains mostly exotic symbols, along with some very useful, commonly used symbols like \verb|\coloneq| $\coloneq$, \verb|\eqcolon| $\eqcolon$, \verb|\notin| $\notin$, \verb|\notni| $\notni$, \verb|\neq| $\neq$, \verb|\nsubset| $\nsubset$ and \verb|\nsupset| $\nsupset$, but these have been moved (virtually) to {\tt lettersA} so they may continue to be used even if you use the option {\tt nosymbolsc}.) If this option is selected, then, as of version 1.53, new definitions are made for the missing negated symbols. The package {\tt centernot} is now required.
\item {\tt amssymbols} (the default) and {\tt noamssymbols} determine whether the {\tt txfonts} versions of the \textsc{ams} symbols ({\tt AMSm}) are loaded---if so, they override previous settings in {\tt amsmath}. If you use the option {\tt noamssymbols}, then \verb|\mathbb{}| is set to mean the same as \verb|\varmathbb{}|. (One advantage of {\tt noamssymbols} is that you save two of your precious math families for other purposes, such as setting a couple of external math alphabets by means of the \textsf{mathalfa} package.) \textbf{Important note:} if you load an AMS class, like {\tt amsart}, then some trickery will be involved. The AMS classes have an option, {\tt noamsfonts} which currently (2017) does not work as advertised, but is fixed in \TeX Live 2018. It is supposed to prevent the loading of {\tt AMSa} and {\tt AMSb}, which waste two slots. The following workaround seems like a reasonable stopgap until then.
\begin{verbatim}