% latex style with times roman text and MathTime (trademark TeXplorators) math

\def\@mrm{ptmr}% times - roman
\def\@mit{ptmri}% times - italic
\def\@msl{ptmro}% times - oblique
\def\@mbf{ptmb}% times - bold
\def\@mcsc{ptmrc}% times - roman - small caps
\def\@mtt{pcrr}% courier
\def\@mss{phvr}% helvetica

\input psfonts.sty

% put some globals in
\def\@@getfont#1#2#3#4#5#6#7{%
\@ifundefined{\string #1\string #5}{\global\expandafter
    \font \csname \string #1\string #5\endcsname #4\@ptscale{#5}\relax}{}%
\@ifundefined{\string #1\string #6}{\global\expandafter
    \font \csname \string #1\string #6\endcsname #4\@ptscale{#6}\relax}{}%
\@ifundefined{\string #1\string #7}{\global\expandafter
    \font \csname \string #1\string #7\endcsname #4\@ptscale{#7}\relax}{}%
\@ifundefined{\string #1\string #3}{\global\expandafter
    \let \csname \string #1\string #3\endcsname #3\relax 
     \@addfontinfo#3{\global\textfont #2\csname \string #1\string #5\endcsname 
     \global\scriptfont #2\csname \string #1\string #6\endcsname 
     \global\scriptscriptfont #2\csname \string #1\string #7\endcsname 
     \def#1{\fam #2\csname\string #1\string #5\endcsname}}}{}#3#1}
\def\@@@getfont#1#2#3#4#5{%
\@ifundefined{\string #1\string #5}{\global\expandafter
    \font \csname \string #1\string #5\endcsname #4\@ptscale{#5}\relax}{}%
\@ifundefined{\string #1\string #3}{\global\expandafter
    \let \csname \string #1\string #3\endcsname #3\relax 
     \@addfontinfo#3{\def#1{\fam #2\csname\string #1\string #5\endcsname}}}{}#3#1}

% use postscript mathtime for math fonts
\input mtmacs
\makeatletter % mtmacs end up setting it to other
\MTMI{10pt}{7pt}{5pt}
\MTSY{10pt}{7pt}{5pt}
\MTEX{10pt}
\def\@mtf#1#2#3{\MTMI{#1pt}{#2pt}{#3pt}\MTSY{#1pt}{#2pt}{#3pt}}
\def\vpt{\@mtf555%
\def\unboldmath{\everymath{}\everydisplay{}\@nomath
  \unboldmath\fam\@ne\@boldfalse}\@boldfalse
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@vpt555%
\@cmrset\fivrm\fivrm\fivrm%
\def\ly{\fam\lyfam\fivly}\textfont\lyfam\fivly 
    \scriptfont\lyfam\fivly \scriptscriptfont\lyfam\fivly 
\@setstrut\rm}
\def\@vpt{}
\def\vipt{\@mtf655%
\def\unboldmath{\everymath{}\everydisplay{}\@nomath
  \unboldmath\@boldfalse}\@boldfalse
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@vipt666
\@cmrset\sixrm\sixrm\sixrm%
\def\ly{\fam\lyfam\sixly}\textfont\lyfam\sixly 
    \scriptfont\lyfam\sixly \scriptscriptfont\lyfam\sixly 
\@setstrut\rm}
\def\@vipt{}
\def\viipt{\@mtf765%
\def\unboldmath{\everymath{}\everydisplay{}\@nomath
\unboldmath\@boldfalse}\@boldfalse
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@viipt755%
\@cmrset\sevrm\sixrm\fivrm%
\def\ly{\fam\lyfam\sevly}\textfont\lyfam\sevly 
    \scriptfont\lyfam\fivly \scriptscriptfont\lyfam\fivly 
\@setstrut \rm}
\def\@viipt{}
\def\viiipt{\@mtf865%
\def\unboldmath{\everymath{}\everydisplay{}\@nomath
\unboldmath\@boldfalse}\@boldfalse
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@viiipt865%
\@cmrset\egtrm\sixrm\fivrm%
\def\ly{\fam\lyfam\egtly}\textfont\lyfam\egtly 
    \scriptfont\lyfam\sixly \scriptscriptfont\lyfam\fivly 
\@setstrut \rm}
\def\@viiipt{}
\def\ixpt{\@mtf965%
\def\unboldmath{\everymath{}\everydisplay{}\@nomath\unboldmath
    \@boldfalse}\@boldfalse
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@ixpt965%
\@cmrset\ninrm\sixrm\fivrm%
\def\ly{\fam\lyfam\ninly}\textfont\lyfam\ninly 
   \scriptfont\lyfam\sixly \scriptscriptfont\lyfam\fivly 
\@setstrut \rm}
\def\@ixpt{}
\def\xpt{\@mtf{10}75%
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@xpt{10}75%
\@cmrset\tenrm\sevrm\fivrm%
\def\ly{\fam\lyfam\tenly}\textfont\lyfam\tenly 
   \scriptfont\lyfam\sevly \scriptscriptfont\lyfam\fivly 
\@setstrut \rm}
\def\@xpt{}
\def\xipt{\@mtf{11}86%
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@xipt{11}86%
\@cmrset\elvrm\egtrm\sixrm%
\def\ly{\fam\lyfam\elvly}\textfont\lyfam\elvly 
   \scriptfont\lyfam\egtly \scriptscriptfont\lyfam\sixly 
\@setstrut \rm}
\def\@xipt{}
\def\xiipt{\@mtf{12}86%
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@xiipt{12}86%
\@cmrset\twlrm\egtrm\sixrm%
\def\ly{\fam\lyfam\twlly}\textfont\lyfam\twlly 
   \scriptfont\lyfam\egtly \scriptscriptfont\lyfam\sixly
 \@setstrut \rm}
\def\@xiipt{}
\def\xivpt{\@mtf{14}{10}7%
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@xivpt{14}{10}7%
\@cmrset\frtnrm\tenrm\sevrm%
\def\ly{\fam\lyfam\frtnly}\textfont\lyfam\frtnly 
   \scriptfont\lyfam\tenly \scriptscriptfont\lyfam\sevly 
\@setstrut \rm}
\def\@xivpt{}
\def\xviipt{\@mtf{17}{12}{10}%
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@xviipt{17}{12}{10}%
\@cmrset\svtnrm\twlrm\tenrm%
\def\ly{\fam\lyfam\svtnly}\textfont\lyfam\svtnly 
   \scriptfont\lyfam\twlly   \scriptscriptfont\lyfam\tenly
\@setstrut \rm}
\def\@xviipt{}
\def\xxpt{\@mtf{20}{14}{12}%
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@xxpt{20}{14}{12}%
\@cmrset\twtyrm\frtnrm\twlrm%
\def\ly{\fam\lyfam\twtyly}\textfont\lyfam\twtyly 
   \scriptfont\lyfam\frtnly \scriptscriptfont\lyfam\twlly 
\@setstrut \rm}
\def\@xxpt{}
\def\xxvpt{\@mtf{25}{20}{17}%
\def\unboldmath{\everymath{}\everydisplay{}\@nomath\unboldmath
        \textfont\@ne\twtymi \textfont\tw@\twtysy \textfont\lyfam\twtyly
        \@boldfalse}\@boldfalse
\def\boldmath{\@subfont\boldmath\unboldmath}%
\@psfonts\@xxvpt{25}{20}{17}%
\@cmrset\twfvrm\twtyrm\svtnrm%
\def\ly{\fam\lyfam\twtyly}\textfont\lyfam\twtyly 
   \scriptfont\lyfam\twtyly \scriptscriptfont\lyfam\svtnly 
\@setstrut \rm}
\def\@xxvpt{}

.