| Linux / Unix Command: expm1 |
NAME
expm1, log1p - exponential minus 1, logarithm of 1 plus argumentSYNOPSIS
#include <math.h> double expm1(double x); double log1p(double x);
DESCRIPTION
expm1(x) returns a value equivalent to `exp (x) - 1'. It is computed in a way that is accurate even if the value of x is near zero--a case where `exp (x) - 1' would be inaccurate due to subtraction of two numbers that are nearly equal.log1p(x) returns a value equivalent to `log (1 + x)'. It is computed in a way that is accurate even if the value of x is near zero.
CONFORMING TO
BSDSEE ALSO
exp(3), log(3)
Important: Use the man command (% man) to see how a command is used on your particular computer.
