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|man pages section 3: Extended Library Functions, Volume 2 Oracle Solaris 11.1 Information Library|
- complex arc tangent functions
c99 [ flag... ] file... -lm [ library... ] #include <complex.h> double complex catan(double complex z);
float complex catanf(float complex z);
long double complex catanl(long double complex z);
These functions compute the complex arc tangent of z, with branch cuts outside the interval [ -i, +++++ππi ] along the imaginary axis.
These functions return the complex arc tangent value, in the range of a strip mathematically unbounded along the imaginary axis and in the interval [ -π/2, +π/2 ] along the real axis.
No errors are defined.
See attributes(5) for descriptions of the following attributes: