EXP

Section: Mathematical Library (3M)
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NAME

exp, log, log10, pow, sqrt - exponential, logarithm, power, square root  

SYNOPSIS

#include <math.h>

double exp(x)
double x;

double log(x)
double x;

double log10(x)
double x;

double pow(x, y)
double x, y;

double sqrt(x)
double x;  

DESCRIPTION

Exp returns the exponential function of x.

Log returns the natural logarithm of x; log10 returns the base 10 logarithm.

Pow returns xy.

Sqrt returns the square root of x.  

SEE ALSO

hypot(3), sinh(3), intro(2)  

DIAGNOSTICS

Exp and pow return a huge value when the correct value would overflow; errno is set to ERANGE. Pow returns 0 and sets errno to EDOM when the second argument is negative and non-integral and when both arguments are 0.

Log returns 0 when x is zero or negative; errno is set to EDOM.

Sqrt returns 0 when x is negative; errno is set to EDOM.


 

Index

NAME
SYNOPSIS
DESCRIPTION
SEE ALSO
DIAGNOSTICS

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Time: 10:17:12 GMT, December 28, 2024