newtx (29dec)

git-svn-id: svn://tug.org/texlive/trunk@32512 c570f23f-e606-0410-a88d-b1316a301751

3 files changed, 22 insertions, 2 deletions

diff --git a/Master/texmf-dist/doc/fonts/newtx/README b/Master/texmf-dist/doc/fonts/newtx/README
index c35602fc7c1..2e29f202839 100644
--- a/Master/texmf-dist/doc/fonts/newtx/README
+++ b/Master/texmf-dist/doc/fonts/newtx/README
@@ -1,11 +1,15 @@
 This package, 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: 1.17
+Current version: 1.18
 
 This material is subject to the LaTeX Project Public License. See http://www.ctan.org/tex-archive/help/Catalogue/licenses.lppl.html for the details of that license.
 
+Changes in version 1.18
+1. Corrected some misbehaviors under bigdelims.
+2. Added a number of new math accents and macros. See newtxdoc.pdf for details.
+
 Changes in version 1.17
-1. Corrected behavior of math mode < and > under bbegdelims option.
+1. Corrected behavior of math mode < and > under bigdelims option.
 2. Corrected omlnxlmi.fd so that bold math italic option always corresponds to regular weight option.
 3. Added several glyphs to bold math that were missing because they are not available in the Libertine Semibold Italic. (Created bold math italic y, g, v.)
 3. Many changes to metrics in libertine math mode, responding to a detailed report of problems from Michel Senesi.
diff --git a/Master/texmf-dist/doc/fonts/newtx/newtxdoc.pdf b/Master/texmf-dist/doc/fonts/newtx/newtxdoc.pdf
index 8077e3036b1..2bc64b49720 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 f20737a130e..b2273ae1565 100644
--- a/Master/texmf-dist/doc/fonts/newtx/newtxdoc.tex
+++ b/Master/texmf-dist/doc/fonts/newtx/newtxdoc.tex
@@ -94,8 +94,24 @@ allows you to use the forms \verb|\iint|, \verb|\iiint|, \verb|\iiiint| and \ver
 \item {\tt libaltvw} has effect only if the libertine option is selected---in this case, it substitutes for math italic v and w hand-crafted versions based on the Libertine upsilon glyphs.
 \item{\tt bigdelims} loads a different math extension font and redefines most of the small and big math delimiters to have larger sizes so that, for example, there is more of a distinction between \verb|(| and \verb|\big(| in math mode. If this option is specified, {\tt cmbraces} is ignored.
 \item{\tt liby} has an effect only if the libertine option is selected---with this option, the math italic y is chosen to be Libertine's italic y instead of the default one from txfonts.
+\item As of version $1.18$ of {\tt newtxmath} (and version $1.07$ of {\tt newpxmath}) there are new math accents and macros available.
+\begin{itemize}
+\item
+\verb|\widehat| and \verb|\widetilde| have been extended from $3$ to $6$ sizes, and the smallest is now not as wide as in previous versions. In particular, you can now use, eg, \verb|$\widehat{X}^2$|, which gives $\widehat{X}^2$ without the hat colliding with the superscript.
+\item The math double bracket delimiters have been moved to another family so their use is less likely to cause a ``too many math families'' error. The orinary sizes now have their own macros, \verb|\dlb| and \verb|\drb|, giving, eg, $\dlb 0,T\drb$, as commonly used in probability theory.
+\item The new macros \verb|\overgroup|, \verb|\undergroup|, \verb|\overgroupra|, \verb|\overgroupla|, \verb|\undergroupra| and \verb|\undergroupla| are intended as replacements for the \verb|\wideparen|, \verb|\widearc| and related macros from the \textsf{yhmath} and \textsf{fourier} packages. In fact, \verb|\overgroup| and \verb|\undergroup| are variants of \verb|\overbrace| and \verb|\underbrace|, while the suffices {\tt ra} and {\tt la} signify right arrow and left arrow respectively. The macro \verb|\widering| places a ring centered over an \verb|\overgroup|, not dissimilar from its use in {\tt yhmath}. Examples:
+\begin{verbatim}
+\[\overgroup{ABC}\quad\overgroupra{ABC}\quad\undergroup{ABC}\quad
+\undergroupla{ABC}\quad \widering{ABCD}\] 
+\end{verbatim}
+gives
+\[\overgroup{ABC}\quad\overgroupra{ABC}\quad\undergroup{ABC}\quad\undergroupla{ABC}\quad\widering{ABCD}\] 
+\end{itemize}
+
 %\item {largelibfigs} has effect only if the libertine option is selected---with this option, full-sized figures are substituted in math mode for the default Libertine figures, which are about 8\% below Libertine's Capheight.
 \end{itemize}
+\bigskip
+
 \textbf{IMPORTANT:} The Libertine text package is now once again named {\tt libertine}, but requires arguments that are different from the original {\tt libertine} package.
 
 \textsc{Example 1:}