1 \newcommand{\DeclareSymbol}[3][\@empty] 2 {\newcommand{#2}{\@print@u{#3}}% 3 \ifx#1\@empty\else\@def@u@default{#3}{#1}\fi} 4 %This symbol does not appear in latin encoding -> direct text definition 5 \newcommand{\DeclareSymbolHtml}[3][\@empty] 6 {\ifx#1\@empty\else\newcommand{#2}{#1}\fi} 7 \newcommand{\MakeBigSymbolHtml}[3][]{} 8 \newcommand{\MakeBigSymbol}[5][] 9 {\newcommand{#2}{\mathop{\ifdisplay#5\else#4\fi}#1}} 10 \let\NewcommandHtml\NoCommand 11 \let\NewcommandText\newcommand 12 \let\RenewcommandHtml\NoCommand 13 \let\RenewcommandText\renewcommand 14 \input{iso-symb.hva}