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casinf
Langue: en
Version: 2008-08-11 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
NAME
casin, casinf, casinl - complex arc sineSYNOPSIS
#include <complex.h>double complex casin(double complex z);
float complex casinf(float complex z);
long double complex casinl(long double complex z);
Link with -lm.
DESCRIPTION
The casin() function calculates the complex arc sine of z. If y = casin(z), then z = csin(y). The real part of y is chosen in the interval [-pi/2,pi/2].One has:
casin(z) = -i clog(iz + csqrt(1 - z * z))
VERSIONS
These functions first appeared in glibc in version 2.1.CONFORMING TO
C99.SEE ALSO
ccos(3), clog(3), complex(7)COLOPHON
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