:man| Alphabetical   Categories   About us 
 
CATAN (3) | C library functions | Unix Manual Pages | :man

NAME

catan, catanf, catanl - complex arc tangents

CONTENTS

Synopsis
Description

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)


Share this page

     Follow us

Facebook Twitter Google+ LinkedIn


 
Created by Blin Media, 2008-2013