How to cinvert string to formula?

[liatdahan1]

helloe,
I need to convert a string into a formula the copiler can read.
for example:
string str = "A*B+C".
I need a function who gets a string and number of ints to replace ABC and returns the Answer,
thanks for your help,
liat

[jhardman]

this sounds like a homework question. What have you tried so far?

Jared