Please see my comment to the question. Perhaps all your problem is to get familiar with floating-point numbers, as an approximate computer representation of such concept and mathematical abstraction as
real numbers:
http://en.wikipedia.org/wiki/Floating-point_number[
^],
http://en.wikipedia.org/wiki/Real_number[
^].
Just to note: the theory of real numbers, being a base of calculus, is an extremely deep and complex field of mathematics.
You can have 100% precise calculations with limited functionality, if you use fixed-point arithmetic, which, in .NET, can be modeled based on integer types:
http://en.wikipedia.org/wiki/Fixed-point_arithmetic[
^].
The idea is this: say, you want to calculate the number in your example with two digits after point. Multiply your numbers by 100, perform integer calculations: 9.60/3.20 = 960/320 = 3.
However, fixed-point operations are really limited. You cannot calculate such thing as 1/3, for example. For such calculations, you still need to use floating-point arithmetic.
—SA
Submit an article or tip