hello all.....

i was asked to perform a program of a calculator using stacks........

so i'll be so glad if any one have any simple ideas that helps...we need to read equations from the keyboard or files with no spaces in between, we must separate the numbers from the operators but realize the numbers that consists of different digits.. and make the postfix of the equation to figure out how to calculate the result and then print it.....

**share your ideas......what do you think.......**

thanx