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casinl (3)
CASIN(3) Linux Programmer's Manual CASIN(3)
NAME
casin, casinf, casinl - complex arc sine
SYNOPSIS
#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 asin(). 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)).
CONFORMING TO
C99
SEE ALSO
ccos(3), clog(3), complex(7)
2002-07-28 CASIN(3)
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