Convert a LaTeX formula to MathML. Never throws: an unknown command becomes
a flagged <mtext>, and a construct that cannot be completed (an unclosed
brace, a \left without \right) renders what came before it and puts the
rest in an <merror>. All echoed source text is escaped.
Convert a LaTeX formula to MathML. Never throws: an unknown command becomes a flagged
<mtext>, and a construct that cannot be completed (an unclosed brace, a\leftwithout\right) renders what came before it and puts the rest in an<merror>. All echoed source text is escaped.