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CATANSection: Manuel du programmeur Linux (3)Updated: 21 juillet 2003 Index Return to Main Contents NOMcatan, catanf, catanl - Fonctions arc tangentes complexes.SYNOPSIS#include <complex.h>double complex catan(double complex z); float complex catanf(float complex z); long double complex catanl(long double complex z); DESCRIPTIONLa fonction catan() calcule la version complexe de atan(). Si y = catan(z), alors z = ctan(y). La partie réelle de y est choisie dans l'intervalle [-pi/2,pi/2].On a catan(z) = 1/2i clog((1+iz)/(1-iz)). CONFORMITÉC99VOIR AUSSIclog(3), ccos(3)TRADUCTIONChristophe Blaess, 2003.
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