tgtermes-math.sty: Math with TeX Gyre Termes
********************************************

:Copyright: © 2008 Günter Milde, Released under the terms of the 
            LaTeX Project Public License (version 1.3 or later)

:Abstract: Math support for the TeX Gyre Termes Times-like font
           combining free available components

Based on `qtxmath` "experimental" math support for the high quality TeX Gyre
Termes font: 

 qtxmath.sty, by Jacek Mierczy\'nski, Staszek Wawrykiewicz, 
 ver. 0.95 (03.02.2007) Public domain.

Removed txfont usage (to enable combination with any math package)

::

  \NeedsTeXFormat{LaTeX2e}
  \ProvidesPackage{tgtermes-math}
  [2008/12/17 v0.1 math for times (TeX Gyre Termes)]
  
Options
=======
::

  \DeclareOption{altg}{\AtEndOfPackage{%
    \DeclareFontShape{OML}{qtxmi}{m}{it}  {<-> qtxmia}{}
    \DeclareFontShape{OML}{qtxmi}{b}{it}  {<-> qtxbmia}{}
    %%
    \DeclareFontFamily{OML}{qtm}{\skewchar\font127 }
    \DeclareFontShape{OML}{qtm}{m}{it}  {<->ssub* qtxmi/m/it}{}
    \DeclareFontShape{OML}{qtm}{bx}{it}  {<->ssub* qtxmi/b/it}{}
    }
  }
  \ProcessOptions\relax
  
Symbol Fonts
============
::

  \DeclareSymbolFont{letters}     {OML}{qtxmi} {m}{it}
  \SetSymbolFont{letters}  {bold}{OML}{qtxmi} {b}{it}
  % \DeclareSymbolFont{operators}   {OT1}{qtm} {m}{n}
  % \SetSymbolFont{operators}{bold}{OT1}{qtm} {b}{n}
  % (leads to errors with long arrows e.g. \Longrightarrow
  % as this is combined out of '=' (from "operators") and '\rightarrow' 
  % from "symbols")
  % \DeclareSymbolFont{symbols}     {OMS}{txsy} {m}{n}
  % \DeclareSymbolFont{largesymbols}     {OMX}{txex} {m}{n}
  % \SetSymbolFont{symbols}  {bold}{OMS}{txsy}{b}{n}
  % \SetSymbolFont{largesymbols}  {bold}{OMX}{txex}{b}{n}
  
Math Alphabets
==============
::

  \DeclareMathAlphabet{\mathbf}{\encodingdefault}{qtm}{b}{n}
  \DeclareMathAlphabet{\mathit}{\encodingdefault}{qtm}{m}{it}
  \SetMathAlphabet{\mathit}{bold}{\encodingdefault}{qtm}{b}{it}
  \DeclareMathAlphabet{\mathrm}{\encodingdefault}{qtm}{m}{n}
  \SetMathAlphabet{\mathrm}{bold}{\encodingdefault}{qtm}{b}{n}
  
Numbers
=======
(from kmath.sty)::

  \DeclareSymbolFont{qtmoperators}{T1}{qtm}{m}{n}
  \SetSymbolFont{qtmoperators}{bold}{T1}{qtm}{b}{n}
  \DeclareMathSymbol{0}{\mathalpha}{qtmoperators}{`0}
  \DeclareMathSymbol{1}{\mathalpha}{qtmoperators}{`1}
  \DeclareMathSymbol{2}{\mathalpha}{qtmoperators}{`2}
  \DeclareMathSymbol{3}{\mathalpha}{qtmoperators}{`3}
  \DeclareMathSymbol{4}{\mathalpha}{qtmoperators}{`4}
  \DeclareMathSymbol{5}{\mathalpha}{qtmoperators}{`5}
  \DeclareMathSymbol{6}{\mathalpha}{qtmoperators}{`6}
  \DeclareMathSymbol{7}{\mathalpha}{qtmoperators}{`7}
  \DeclareMathSymbol{8}{\mathalpha}{qtmoperators}{`8}
  \DeclareMathSymbol{9}{\mathalpha}{qtmoperators}{`9}
  
Greek letters
=============
::

  \DeclareMathSymbol{\varGamma}{\mathalpha}{letters}{0}
  \DeclareMathSymbol{\varDelta}{\mathalpha}{letters}{1}
  \DeclareMathSymbol{\varTheta}{\mathalpha}{letters}{2}
  \DeclareMathSymbol{\varLambda}{\mathalpha}{letters}{3}
  \DeclareMathSymbol{\varXi}{\mathalpha}{letters}{4}
  \DeclareMathSymbol{\varPi}{\mathalpha}{letters}{5}
  \DeclareMathSymbol{\varSigma}{\mathalpha}{letters}{6}
  \DeclareMathSymbol{\varUpsilon}{\mathalpha}{letters}{7}
  \DeclareMathSymbol{\varPhi}{\mathalpha}{letters}{8}
  \DeclareMathSymbol{\varPsi}{\mathalpha}{letters}{9}
  \DeclareMathSymbol{\varOmega}{\mathalpha}{letters}{10}
  %%
  \DeclareMathSymbol{\Gamma}{\mathalpha}{letters}{128}
  \DeclareMathSymbol{\Delta}{\mathalpha}{letters}{129}
  \DeclareMathSymbol{\Theta}{\mathalpha}{letters}{130}
  \DeclareMathSymbol{\Lambda}{\mathalpha}{letters}{131}
  \DeclareMathSymbol{\Xi}{\mathalpha}{letters}{132}
  \DeclareMathSymbol{\Pi}{\mathalpha}{letters}{133}
  \DeclareMathSymbol{\Sigma}{\mathalpha}{letters}{134}
  \DeclareMathSymbol{\Upsilon}{\mathalpha}{letters}{135}
  \DeclareMathSymbol{\Phi}{\mathalpha}{letters}{136}
  \DeclareMathSymbol{\Psi}{\mathalpha}{letters}{137}
  \DeclareMathSymbol{\Omega}{\mathalpha}{letters}{138}
  
Operators
=========
::

  \DeclareMathSymbol{+}{\mathbin}{letters}{139}
  % \DeclareMathSymbol{=}{\mathrel}{letters}{140}
  \DeclareMathDelimiter{/}{\mathord}{letters}{141}{largesymbols}{"0E}
  %%
  \DeclareMathSymbol{\xleq}{\mathrel}{letters}{142}
  \DeclareMathSymbol{\xgeq}{\mathrel}{letters}{143}
  
Special case - Polish
---------------------
::

  \@ifpackageloaded{polski}{%
      \let\leq=\xleq
      \let\geq=\xgeq
      \let\le=\leq
      \let\ge=\geq
      }{}
  
Letter variants
---------------
::

  \DeclareMathSymbol{\varg}{\mathord}{letters}{144}
  \DeclareMathSymbol{\varv}{\mathord}{letters}{145}
  \DeclareMathSymbol{\varw}{\mathord}{letters}{146}
  \DeclareMathSymbol{\vary}{\mathord}{letters}{147}
  
Font definitions
----------------
::

  \DeclareFontFamily{OML}{qtxmi}{\skewchar\font127 }
  \DeclareFontShape{OML}{qtxmi}{m}{it}  {<-> qtxmi}{}
  \DeclareFontShape{OML}{qtxmi}{b}{it}  {<-> qtxbmi}{}
  %
  \DeclareFontFamily{OML}{qtm}{\skewchar\font127 }
  \DeclareFontShape{OML}{qtm}{m}{it}  {<->ssub* qtxmi/m/it}{}
  \DeclareFontShape{OML}{qtm}{bx}{it}  {<->ssub* qtxmi/b/it}{}