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RedHat 9 (Linux i386) - man page for exp (redhat section 3)

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)
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