GNU/Linux man pages
Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.1 |
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clog(3) |
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clog, clogf, clogl − natural logarithm of a complex number
#include <complex.h>
double
complex clog(double complex z);
float complex clogf(float complex z);
long double complex clogl(long double complex
z);
Link with −lm.
The logarithm clog is the inverse function of the exponential cexp. Thus, if y = clog(z), then z = cexp(y). The imaginary part of y is chosen in the interval [−pi,pi].
One has clog(z) = log(cabs(z))+I*carg(z).
Please note that z close to zero will cause an overflow.
C99
cabs(3), cexp(3), clog10(3), complex(7)
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clog(3) | |