How do I calculate a logarithm in iOS?

Question

I want to calculate a logarithm in iOS. Can Objective-C do this?

Answer 1

You can use the C functions for calculating logarithms

#import <math.h>
double myLog = log(10);

You can also see here: What kind of logarithm functions / methods are available in objective-c / cocoa-touch?

Answer 2

Yes.

Objective C is a superset of ANSI C, and iOS supports using most of the usual C libraries.

Thus, you can use the C library math.h, which include several log functions (base10, base e, float result, double result, etc.)