Flashnux

GNU/Linux man pages

Livre :
Expressions régulières,
Syntaxe et mise en oeuvre :

ISBN : 978-2-7460-9712-4
EAN : 9782746097124
(Editions ENI)

GNU/Linux

CentOS 4.8

i386

catan(3)


CATAN

CATAN

NAME
SYNOPSIS
DESCRIPTION
CONFORMING TO
SEE ALSO

NAME

catan, catanf, catanl − complex arc tangents

SYNOPSIS

#include <complex.h>

double complex catan(double complex z);

float complex catanf(float complex z);

long double complex catanl(long double complex z);

DESCRIPTION

The catan() function calculates the complex atan(). If y = catan(z), then z = ctan(y). The real part of y is chosen in the interval [-pi/2,pi/2].

One has catan(z) = 1/2i clog((1+iz)/(1-iz)).

CONFORMING TO

C99

SEE ALSO

clog(3), ccos(3)



catan(3)