Could you please explain to me how to write the user defined functions with multiple arguments? (specifically with 2 or 3 input arguments). And also, how to make one function to manipulate different data each time it is called? (for example area of bigger circle minus area of the smaller circle with one findArea function) To be specific, can you show me Prototype, function definition, and function call?
My C++ book doesn't explain it clearly.
Thank you very much