hay.. I'm kinda new.. well... really new.. to C++. I'm wondering if theres any way for a user to input an equation. i'm working on a program that had embedded equations, the only problem is I want the user to be able to define the equations to fit their own need. i've been trying different approaches, but I can't find anything anywhere that hints on how to do this, short of strings of IF statements or strings of switches... can anyone help?