I am going to write a program which should handle the math. formular entered by the user. Excactly to say: if the program is statrd, it shows a edit window and the user can enter a math. formular in any form such as (a+b)*x/y, 5*sin(x+a) etc.. The problem is, the program reads the formular as a string, not as a formular. I was told it's quite complicated to write a program to translate the string to a formular.
Dos someone have any good idea?