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+% OFS: TX fonts, declaration
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% Apr. 2004                                  Petr Olsak
+
+%% see end of this file for more informations
+
+\protectreading txfn.tex % This is part of OFS package
+
+\ofsputfamlist {^^Jtxfn.tex:}
+
+\ofsdeclarefamily [TXRoman] {% ---------- TX fonts: Times Roman
+   \loadtextfam (Upright) txr\fotenc;%
+                          txb\fotenc;%
+                          txi\fotenc;%
+                          txbi\fotenc;8c;%
+   \newvariant6 \sl   (Slanted)          txsl\fotenc;8c;%
+   \newvariant7 \bsl  (BoldSlanted)      txbsl\fotenc;8c;%
+   \newvariant8 \csc  (Cap+SmallCap)     txsc\fotenc;8c;%
+   \newvariant9 \bcsc (BoldCap+SmallCap) txbsc\fotenc;8c;%
+   \def\TeX{T\kern-.1667em\lower.3333ex\hbox{E}\kern-.125emX}%
+}
+\registerenc: 8t
+
+\ofsdeclarefamily [TXSans] {% ---------- TX fonts: Helvetica
+   \loadtextfam (Upright)     txss\fotenc;%
+                              txbss\fotenc;%
+                (Slanted)     txsssl\fotenc;%
+                (BoldSlanted) txbsssl\fotenc;8c;%
+   \newvariant8 \csc  (Cap+SmallCap)     txsssc\fotenc;8c;%
+   \newvariant9 \bcsc (BoldCap+SmallCap) txbsssc\fotenc;8c;%
+   \def\TeX{T\kern-.12em\lower.4ex\hbox{E}\kern-0.09emX}%
+}
+\registerenc: 8t
+
+\ofsdeclarefamily [TXTypewriter] {% ------ TX fonts: Typewriter
+   \loadtextfam (Upright)     txtt\fotenc;%
+                              txbtt\fotenc;%
+                (Slanted)     txttsl\fotenc;%
+                (BoldSlanted) txbttsl\fotenc;8c;%
+   \newvariant8 \csc  (Cap+SmallCap)     txttsc\fotenc;8c;%
+   \newvariant9 \bcsc (BoldCap+SmallCap) txbttsc\fotenc;8c;%
+   \let\TeX=\origTeX
+}
+\registerenc: 8t
+
+\registertfm txr8t    - t1xr   %
+\registertfm txb8t    - t1xb   %
+\registertfm txi8t    - t1xi   %
+\registertfm txbi8t   - t1xbi  %
+\registertfm txsl8t   - t1xsl  %
+\registertfm txbsl8t  - t1xbsl %
+\registertfm txsc8t   - t1xsc  %
+\registertfm txbsc8t  - t1xbsc %
+
+\registertfm txss8t     - t1xss    %
+\registertfm txbss8t    - t1xbss   %
+\registertfm txsssl8t   - t1xsssl  %
+\registertfm txbsssl8t  - t1xbsssl %
+\registertfm txsssc8t   - t1xsssc  %
+\registertfm txbsssc8t  - t1xbsssc %
+
+\registertfm txtt8t     - t1xtt    %
+\registertfm txbtt8t    - t1xbtt   %
+\registertfm txttsl8t   - t1xttsl  %
+\registertfm txbttsl8t  - t1xbttsl %
+\registertfm txttsc8t   - t1xttsc  %
+\registertfm txbttsc8t  - t1xbttsc %
+
+\registertfm txr8c    - tcxr   %
+\registertfm txb8c    - tcxb   %
+\registertfm txi8c    - tcxi   %
+\registertfm txbi8c   - tcxbi  %
+\registertfm txsl8c   - tcxsl  %
+\registertfm txbsl8c  - tcxbsl %
+\registertfm txsc8c   - tcxr   %
+\registertfm txbsc8c  - tcxb   %
+
+\registertfm txss8c    - tcxss    %
+\registertfm txbss8c   - tcxbss   %
+\registertfm txsssl8c  - tcxsssl  %
+\registertfm txbsssl8c - tcxbsssl %
+\registertfm txsssc8c  - tcxss    %
+\registertfm txbsssc8c - tcxbss   %
+
+\registertfm txtt8c    - tcxtt    %
+\registertfm txbtt8c   - tcxbtt   %
+\registertfm txttsl8c  - tcxttsl  %
+\registertfm txbttsl8c - tcxbttsl %
+\registertfm txttsc8c  - tcxtt    %
+\registertfm txbttsc8c - tcxbtt   %
+
+\def\loadTXnormalmath{%
+  \loadmathfam 0[/txr]%                    Roman font
+  \defaultskewchar=128
+  \loadmathfam 1[/txmi]%                   Math Italic font
+  \defaultskewchar=48
+  \loadmathfam 2[/txsy]%                   Standard symbols
+  \defaultskewchar=-1
+  \noindexsize\loadmathfam 3[/txex]%       Standard extra symbols
+  \chardef\itfam    4 
+  \loadmathfam \itfam [/txi]%              Text Italic
+  \chardef\bffam    5
+  \loadmathfam \bffam [/txb]%              Bold font
+  \chardef\bifam   6 
+  \loadmathfam \bifam    [/txbi]%          Bold Italic
+  \chardef\msamfam  7
+  \loadmathfam \msamfam  [/txsya]%         MSAM, symbols from ASMTeX
+  \chardef\msbmfam  8
+  \loadmathfam \msbmfam  [/txsyb]%         MSBM, symbols from AMSTeX
+  \chardef\txsycfam 9
+  \loadmathfam \txsycfam [/txsyc]%         New symbols from TX fonts
+  \chardef\txmiafam 10
+  \loadmathfam \txmiafam [/txmia]%         Upright math italic
+  \chardef\txexafam 11
+  \loadmathfam \txexafam [/txexa]%         Extra extra symbols
+  \let\slfam\undefined  \let\ttfam\undefined
+  \lastfam =11 % four families for user
+}
+\def\loadTXboldmath{%
+  \loadmathfam 0[/txb]%                     Roman font
+  \defaultskewchar=127
+  \loadmathfam 1[/txbmi]%                   Math Italic font
+  \defaultskewchar=48
+  \loadmathfam 2[/txbsy]%                   Standard symbols
+  \defaultskewchar=-1
+  \noindexsize\loadmathfam 3[/txbex]%       Standard extra symbols
+  \chardef\itfam    4 
+  \loadmathfam \itfam [/txbi]%              Text Italic
+  \chardef\msamfam  7
+  \loadmathfam \msamfam  [/txbsya]%         MSAM, symbols from ASMTeX
+  \chardef\msbmfam  8
+  \loadmathfam \msbmfam  [/txbsyb]%         MSBM, symbols from AMSTeX
+  \chardef\txsycfam 9
+  \loadmathfam \txsycfam [/txbsyc]%         New symbols from TX fonts
+  \chardef\txmiafam 10
+  \loadmathfam \txmiafam [/txbmia]%         Upright math italic
+  \chardef\txexafam 11
+  \loadmathfam \txexafam [/txbexa]%         Extra extra symbols
+  \chardef\bffam=0 \let\bifam=\itfam
+  \let\slfam\undefined  \let\ttfam\undefined
+  \lastfam =11 % needs to be the same as in normalmath
+}
+\def\loadPXnormalmath{%
+  \loadmathfam 0[-rm/]%                    Roman font
+  \loadmathfam 1[-it/]%                    Math Italic font
+  \defaultskewchar=48
+  \loadmathfam 2[/txsy]%                   Standard symbols
+  \defaultskewchar=-1
+  \noindexsize\loadmathfam 3[/txex]%       Standard extra symbols
+  \chardef\mifam    4 
+  \loadmathfam \mifam [/txmi]%             Math Italic (greek symbols)
+  \chardef\bffam    5
+  \loadmathfam \bffam [-bf/]%              Bold font
+  \chardef\bifam    6 
+  \loadmathfam \bifam    [-bi/]%           Bold Italic
+  \chardef\msamfam  7
+  \loadmathfam \msamfam  [/txsya]%         MSAM, symbols from ASMTeX
+  \chardef\msbmfam  8
+  \loadmathfam \msbmfam  [/txsyb]%         MSBM, symbols from AMSTeX
+  \chardef\txsycfam 9
+  \loadmathfam \txsycfam [/txsyc]%         New symbols from TX fonts
+  \chardef\txmiafam 10
+  \loadmathfam \txmiafam [/txmia]%         Upright math italic
+  \chardef\txexafam 11
+  \loadmathfam \txexafam [/txexa]%         Extra extra symbols
+  \chardef\rmsyfam  12
+  \loadmathfam \rmsyfam  [/txr]%           TX Roman font (for uppercase greek)
+  \let\slfam\undefined  \let\ttfam\undefined
+  \lastfam =12 % three families for user
+}
+\def\loadPXboldmath{%
+  \loadmathfam 0[-bf/]%                     Roman font
+  \loadmathfam 1[-bi/]%                     Math Italic font
+  \defaultskewchar=48
+  \loadmathfam 2[/txbsy]%                   Standard symbols
+  \defaultskewchar=-1
+  \noindexsize\loadmathfam 3[/txbex]%       Standard extra symbols
+  \chardef\mifam    4 
+  \loadmathfam \mifam [/txbmi]%             Math Italic (greek symbols)
+  \chardef\msamfam  7
+  \loadmathfam \msamfam  [/txbsya]%         MSAM, symbols from ASMTeX
+  \chardef\msbmfam  8
+  \loadmathfam \msbmfam  [/txbsyb]%         MSBM, symbols from AMSTeX
+  \chardef\txsycfam 9
+  \loadmathfam \txsycfam [/txbsyc]%         New symbols from TX fonts
+  \chardef\txmiafam 10
+  \loadmathfam \txmiafam [/txbmia]%         Upright math italic
+  \chardef\txexafam 11
+  \loadmathfam \txexafam [/txbexa]%         Extra extra symbols
+  \chardef\rmsyfam  12
+  \loadmathfam \rmsyfam  [/txb]%            TX Roman font (for uppercase greek)
+  \chardef\bffam=0 \chardef\bifam=1
+  \let\slfam\undefined  \let\ttfam\undefined
+  \lastfam =12 % needs to be the same as in normalmath
+}
+\def\setTXmathchars{%
+  \mathencread ofs-ams;%
+  \mathencread ofs-tx;%
+}
+\def\setPXmathchars{%
+  \mathencread ofs-px;%
+  \mathencread ofs-ams;%
+  \mathencread ofs-tx;%
+  \addcmd \mathcharsback {\mathencread ofs-cm;}%
+}
+\endinput
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+After:
+
+\input txfn
+
+the new text families TXRoman, TXSans and TXTypewriter
+are declared and new math encodings TX and PX are declared.
+
+TXRoman: the same as Times, but more variants \sl, \bsl, \csc and 
+         \bcsc are defined and extension font is used from TXfonts 
+         (all text-companion symbols are available).
+TXSans:  the same as Helvetica, but more variants \csc and \bcsc
+         are defined and extension font is used from TXfonts.
+TXTypewriter: Special typewriter-like family from TXfonts.
+
+TX: TXfonts will be used in all families of math fonts.
+PX: fam0 (roman) will be the same as current text roman variant,
+    fam1 (math-italic) will be the same as current text italic,
+    other math symbols will be used from TXfonts.
+
+Control sequences of all TX symbols (many hunderds) are available 
+in math mode after \setmath[//] if \def\fomenc{TX} or
+\def\fomenc{PX} is used. See TX documentation for more information
+about names of these sequences and symbols shapes.
+
+Not all possible math alphabets are allocated. For example, typewriter
+and slanted variants are not allocated by default in order to keep the
+space of math families. You can add math alphabets by hand:
+
+* Sans serif bold slanted variant for math (usable for vectors):
+
+\addcmd\mathfonts {\newmathfam\vecfam \loadmathfam\vecfam [/txbsssl]}
+\addcmd\mathchars {\def\vec##1{{\fam\vecfam##1}}}
+
+* \sl variant for math (I don't know how it is usable):
+
+\addcmd\mathfonts {\def\tmpa{bold}%
+   \ifx\mathversion\tmpa \def\tmpa{b}\else\def\tmpa{}\fi
+   \newmathfam\slfam \loadmathfam\slfam [/tx\tmpa sl]}
+
+* \tt variant for math (I don't know how it is usable):
+
+\addcmd\mathfonts {\def\tmpa{bold}%
+   \ifx\mathversion\tmpa \def\tmpa{b}\else\def\tmpa{}\fi
+   \newmathfam\ttfam \loadmathfam\ttfam [/tx\tmpa tt]}
+
+See end of amsfn.tex file for more examples of math alphabets 
+(Euler Fraktur, Euler Script etc.).
+
+
+
+
+
+