Simple O-ring calculator.

[Jonathan]

any idea on what I can use instead of int?

Use 'float' - not the most memory efficient way to do it but that's not an issue here. Also you might find it helpful to include math.h.

Also since those are currently all ints, you might be introducing a big rounding error with pi.

[i2i]

the depth of an o-ring groove has to be spot on with quite tight tolerances, there are charts available for o-ring sizes.

[irving2008]

Also since those are currently all ints, you might be introducing a big rounding error with pi.

It will because of the implicit conversion of the result to int. So 11 * 3.14159 could be treated as

int(11.0 * 3.14159)=int(34.55)=34

or

11 * int(3.14159) = 33

Either is wrong...

depending on the compiler. .