So, what I am trying to do is solve this equation:

((A – B - 10) * 100 / B ) - 2 * C – Math.Floor(D / 4)

(Math.Floor means round down.)

I would like to be able to input A, B, C and D and have the calculator solve the equation, but if I do this:

Input "A: ",A

Input "B: ",B

Input "C: ",C

Input "D: ",D

fnInt(Equation

It shows an error. I was wondering how to do a multi-variable problem.