C in a Nutshell

Name

log10

Synopsis

Calculates the base-10 logarithm of a number

#include <math.h>
doublelog10( double x );
float log10f( float x );        (C99)
long double log10l( long double x );        (C99)

The log10() functions calculate the common logarithm of their argument. The common logarithm is the logarithm to base 10. The common logarithm of a number x is defined only for positive values of x. If x is negative, a domain error occurs; if x is zero, a range error may occur.

Example

See the example for log() in this chapter.

See Also

log(), log1p(), log2(), exp(), pow()