hello friends...i am creating one small c program which is used for performing addition and some mathematical calculations.my doubt is if i want to calculate any thing in that program first i have to compile that program,then i can able to get the answer.. without compiling can i give that input numbers..that means if we are opening calculator in computer(windows xp) first we gave the input numbers then it shows the corresponding output..so like that can i do in c using of tat program...if you have any reference websites pls give...very thanks....