EXP(3) Linux Programmer's Manual EXP(3)
NAME
exp, log, log10, pow - exponential, logarithmic and power functions
SYNOPSIS
#include <math.h>
double exp(double x);
double log(double x);
double log10(double x);
double pow(double x, double y);
DESCRIPTION
The exp() function returns the value of e (the base of natural logarithms) raised to the power of x.
The log() function returns the natural logarithm of x.
The log10() function returns the base-10 logarithm of x.
The pow() function returns the value of x raised to the power of y.
ERRORS
The log() and log10() functions can return the following errors:
EDOM The argument x is negative.
ERANGE The argument x is zero. The log of zero is not defined.
The pow() function can return the following error:
EDOM The argument x is negative and y is not an integral value. This would result in a complex number.
CONFORMING TO
SVID 3, POSIX, BSD 4.3, ISO 9899
SEE ALSO
sqrt(3), cbrt(3)
GNU
1993-06-16 EXP(3)
