I am quite fond of http://golem.ph.utexas.edu/~distler/blog/itex2MML.html http://golem.ph.utexas.edu/~distler/blog/itex2MML.html . It's not exactly the same, bu

I am quite fond of http://golem.ph.utexas.edu/~distler/blog/itex2MML.html http://golem.ph.utexas.edu/~distler/blog/itex2MML.html . It's not exactly the same, but the only glitch that you are likely to hit is that "ab" is not the same as "a b": the first is one variable (MathML has the concept of multiletter variable names), and the second is two variables neighbouring.