Question

When formatting a number into a string, I can limit the characters after a decimal point with, e.g., %.03f (display three digits after the point), but how do I also remove all digits BEFORE the point?

For example, I’d like 100.943 to format to ".943".

Answer 1

I think the only way for you to do that would be to remove the number before the decimal point using math, or string manipulation after the fact, like componentsSeparatedByString:@"."

A simple math way of removing it would be:

float initialValue = 100.943f;
int beforeDecimal = (int)initialValue;
float afterDecimal = initialValue - beforeDecimal;