ToSymbolicXML,
FromSymbolicXML — convert between expressions and SymbolicXML
ToVerboseXML — include explicit namespace information
ToCompactXML — omit redundant namespace information
RawXML — raw string fragment of XML inside a SymbolicXML expression
XMLGet,
XMLGetString — get a SymbolicXML expression, using an optional parser
ExpressionToSymbolicMathML — convert expressions to Symbolic MathML
SymbolicMathMLToExpression — convert Symbolic MathML to expressions
