Question

i want the result of an equation rounded to the nearest integer. e.g.

137 * (3/4) = 103 

Consider the following incorrect code.

int width1 = 4; int height1 = 3;  int width2 = 137; int height2 = width2 * (height1 / width1); 

What is the proper way to perform ‘integer’ math in C#?

Do i really have to do:

int height2 = (int)Math.Round(       (float)width2 * ((float)height1 / (float)width1)    ); 

Answer 1

As said above, you should do the multiplication before the division. Anyway you could write your expression with casting only the divisor:

int height2 = (int)Math.Round(width2 * (height1 / (float)width1));