clog2(3) Library Functions Manual clog2(3)

clog2, clog2f, clog2l - base-2 logarithm of a complex number

Math library (libm, -lm)

#include <complex.h>
double complex clog2(double complex z);
float complex clog2f(float complex z);
long double complex clog2l(long double complex z);

The call clog2(z) is equivalent to clog(z)/log(2).

The other functions perform the same task for float and long double.

Note that z close to zero will cause an overflow.


These function names are reserved for future use in C99.

Not yet in glibc, as at glibc 2.19.

cabs(3), cexp(3), clog(3), clog10(3), complex(7)

2024-05-02 Linux man-pages 6.9