Linux / Unix Command: exp

Command Library

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)

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Important: Use the man command (% man) to see how a command is used on your particular computer.

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