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 logarithm.
Pow returns and pow10 returns 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)