How to represent a mathematical expression?

Question

Programming

Hi all. At the moment, I'm thinking about finalizing my program for symbolic differentiation and the question has become how to convert the string expression sin (x) / x to the usual one, as we wrote in mathematics
For Delphi there is a library www.delphikingdom.com/asp/viewitem.asp ?catalogid=718 , but I'm not interested in Delphi right now.
Sincerely, Harry.

Answer 1

Try mimetex , though it needs to be input in LaTeX syntax.

Answer 2

With the help of reverse Polish notation , and then you can overtake the representation in this format into the LaTeX format and render it yourself

Answer 3

Rendering LaTeX formulas look for.
Just not in the raster, it will be miserable in all respects.
look at MathJax or dig into the TeXmacs sources.
PS Invent the bicycle.