catan(3M) Mathematical Library Functions catan(3M)NAME
catan, catanf, catanl - complex arc tangent functions
SYNOPSIS
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);
DESCRIPTION
These functions compute the complex arc tangent of z, with branch cuts
outside the interval [ −i, +++++pipii ] along the imaginary axis.
RETURN VALUES
These functions return the complex arc tangent value, in the range of a
strip mathematically unbounded along the imaginary axis and in the
interval [ −pi/2, +pi/2 ] along the real axis.
ERRORS
No errors are defined.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Standard │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │MT-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOcomplex.h(3HEAD), ctan(3M), attributes(5), standards(5)SunOS 5.10 12 Jul 2006 catan(3M)