
\DeclareSymbolFont{italics}{\encodingdefault}{\rmdefault}{m}{it}

\def\@setmcodes#1#2#3{{\count0=#1 \count1=#3
    \loop \global\mathcode\count0=\count1 \ifnum \count0<#2
    \advance\count0 by1 \advance\count1 by1 \repeat}}
\@setmcodes{`A}{`Z}{"7\hexnumber@\symitalics41} 
\@setmcodes{`a}{`z}{"7\hexnumber@\symitalics61} 

