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XCharter-Math package
====================
## Description
`XCharter-Math.otf’ is an OpenType mathematical font to be used
with the XCharter text fonts.
## Contents
* XCharter-Math.otf OpenType Math font
* XCharter-Math-Bold.otf Bold variant (limited coverage)
* xcharter-otf.sty LaTeX style file
* XCharter-Math.pdf Documentation in PDF format
* XCharter-Math.ltx Source of XCharter-Math.pdf
* unimath-xcharter.pdf Modified version of unimath-symbols.pdf
showing available XCharter-Math symbols compared
to LatinModern, STIXTwo, Erewhon, TeXGyrePagella,
Libertinus and EBGaramond.
* unimath-xcharter.ltx Source of unimath-xcharter.pdf
* README.md (this file)
## Installation
This package is meant to be installed automatically by TeXLive, MikTeX, etc.
Otherwise, XCharter-Math can be installed under TEXMFHOME or TEXMFLOCAL, f.i.
XCharter-Math.otf in directory texmf-local/fonts/opentype/public/xcharter-math/
and fourier-otf.sty in directory texmf-local/tex/latex/xcharter-math/.
Documentation files and their sources can go to directory
texmf-local/doc/fonts/public/xcharter-math/
Don't forget to rebuild the file database (mktexlsr or so) if you install
under TEXMFLOCAL.
Finally, make the system font database aware of the XCharter Math font
(fontconfig under Linux).
## License
* The font `XCharter-Math.otf’ is licensed under the SIL Open Font License,
Version 1.1. This license is available with a FAQ at:
http://scripts.sil.org/OFL
* The other files are distributed under the terms of the LaTeX Project
Public License from CTAN archives in directory macros/latex/base/lppl.txt.
Either version 1.3c or, at your option, any later version.
## Changes
* First public version: 0.30
* v0.31:
- Fixed "Style=" options in xcharter-otf.sty (they didn't work for XeLaTeX).
- Added glyphs \nleqqslant and \ngeqqslant (U+E09A, U+E09B).
- Corrected glyphs \varsubsetneqq \varsusetneqq (U+E09C, U+E09D).
* v0.32:
- all vertical delimiters resized.
- \mathslash, \backslash and their vertical variants: slope corrected.
- xcharter-otf.sty now loads realscripts for better superscripts.
* v0.33:
- xcharter-otf.sty loads XCharter-Math.otf by file name for XeTeX.
* v0.34:
- Delimiters, integrals, sum, prod etc. are now vertically
centred by design on the maths axis (required by luametatex).
* v0.35:
- Experimental Bold variant added.
- Fixed \wideoverbar (U+0305) which failed with XeTeX.
- Corrected negative right bearings of some display integrals.
- Added stretchable integral for U+222B (usable with luametatex).
* v0.36:
- package now compatible with mathtools’ stretchable arrows.
- \diagup and \diagdown moved from private area to U+27CB, U+27CD.
* v0.40:
- Metrics of all "over" arrows and harpoons corrected.
- Metrics of all "under" arrows and harpoons corrected.
- Most horizontal arrows and harpoons are now stretchable.
* v0.41:
- radicals corrected.
- xcharter-otf.sty: options handled by `l3keys` instead of `xkeyval`
(requires a LaTeX kernel not older than 2022-06-01).
- XCharter-Math-Bold.otf: missing glyphs added in range
U+1D400-U+1D7F5 (SE#688363 for KPfonts).
* v0.42:
- XCharter-Math-Bold.otf: Uppercase Blackboard Bold glyphs added as
suggested by Ulrik Vieth. Glyphs U+2107, U+2126, U+2127, U+212B,
U+2132 and U+2141 added too.
* v0.50:
- XCharter-Math.otf: Digits and Lowercase Blackboard Bold glyphs added;
over twenty math symbols added (coverage now similar to Erewhon-Math).
* v0.51:
- Fixed IsExtendedShape flags.
- \mid (U+2223) and \parallel (U+2225) vertical variants changed.
- CharacterVariant=11 added: it replaces the original math italic v
by a variant easier to distinguish from \nu.
- OT features cvNN are now applied before ssty (applied last).
* v0.60:
- CharacterVariant=12 added: it replaces the original math italic w
by a rounder variant to match the v variant (cv11) added in v0.51.
- Inconsistencies between Bold Caligraphic glyphs and their Regular
counter-parts fixed.
- Superscripts redesigned.
- Inconsistencies between vertical delimiter sizes fixed.
- Metrics of \widebreve, \widecheck, \widehat, \widetilde first
horizontal variant (.h0) changed: f.i. $\hat{r} \ne \widehat{r}$.
- XCharter-Math-Bold: horizontal variants of the main accents added,
plus another hundred glyphs.
* v0.61:
- More fixes for delimiter sizes.
* v0.62:
- Fixed Game glyph (U+2141).
- \leqslant, \geqslant (and related glyphs) are now vertically aligned
with \leq, \geq.
- XCharter-Math-Bold: missing italic correction added for int.up,
int.v1, int.v1.up.
* v0.63:
- Added lmoustache, rmoustache (U+23B0, U+23B1).
- Superscripts BbbE.st and BbbE.sst fixed (U+EA04, U+ED04).
---
Copyright 2022-2024 Daniel Flipo
E-mail: daniel (dot) flipo (at) free (dot) fr
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