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CATAN 3M "Jul 12, 2006" "SunOS 5.11" "Mathematical Library Functions"
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, +++++\c \c \c \c i ] 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 [ -\c \c /2, +\c \c /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 ALSO
complex.h(3HEAD), ctan(3M), attributes(5), standards(5)