double log10 (double x);
double log10 (double x); float log10f (float x);long double log10l (long double x);
double log10 (double x); float log10 (float x);long double log10 (long double x);
double log10 (double x); float log10 (float x);long double log10 (long double x); double log10 (T x); // additional overloads for integral types
<cmath> ) for the integral types: These overloads effectively cast x to a double before calculations.<complex> and <valarray> (see complex log10 and valarray log10).1
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/* log10 example */
#include <stdio.h> /* printf */
#include <math.h> /* log10 */
int main ()
{
double param, result;
param = 1000.0;
result = log10 (param);
printf ("log10(%f) = %f\n", param, result );
return 0;
}log10(1000.000000) = 3.000000