GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.1 |
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log1pf(3) |
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log1p − logarithm of 1 plus argument
#include <math.h>
double
log1p(double x);
float log1pf(float x);
long double log1pl(long double x);
Compile with −std=c99; link with −lm.
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.
BSD, C99. The float and long double variants are C99 requirements.
exp(3), expm1(3), log(3)
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log1pf(3) | |