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|man pages section 3: Extended Library Functions, Volume 2 Oracle Solaris 11 Information Library|
- complex arc cosine functions
c99 [ flag... ] file... -lm [ library... ] #include <complex.h> double complex cacos(double complex z);
float complex cacosf(float complex z);
long double complex cacosl(long double complex z);
These functions compute the complex arc cosine of z, with branch cuts outside the interval [ -1, +1 ] along the real axis.
These functions return the complex arc cosine value, in the range of a strip mathematically unbounded along the imaginary axis and in the interval [ 0, π ] along the real axis.
No errors are defined.
See attributes(5) for descriptions of the following attributes: