Obtain the logarithm with a base of 10
[Classification]
Mathematical library
[Syntax]
#include <math.h>
float __far log10f(float x);
[Return value]
Returns the logarithm of x with base 10.
log10f returns a Not-a-Number (NaN) and sets macro EDOM to global variable errno if x is negative.
If x is zero, it returns - and sets macro ERANGE to global variable errno.
[Description]
This function calculates the logarithm of x with base 10.