$home/manuals/plan9_2nd/2/exp

EXP(2)                        System Calls Manual                       EXP(2)



NAME
       exp,  log,  log10,  pow,  pow10,  sqrt - exponential, logarithm, power,
       square root

SYNOPSIS
       #include <u.h>
       #include <libc.h>

       double exp(double x)

       double log(double x)

       double log10(double x)

       double pow(double x, double y)

       double pow10(int n)

       double sqrt(double x)

DESCRIPTION
       Exp returns the exponential function of x.

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

       Pow returns x^y, and pow10 returns 10^n as a double.

       Sqrt returns the square root of x.

SOURCE
       All    these    routines    have    portable   C   implementations   in
       /sys/src/libc/port.  Most also have machine-dependent  implementations,
       written either in assembler or C, in /sys/src/libc/$objtype.

SEE ALSO
       hypot(2), sinh(2), intro(2)



                                                                        EXP(2)