NAME
casin, casinf, casinl - complex arc sine
SYNOPSIS
#include <complex.h>
I double complex casin(double complex z );
I float complex casinf(float complex z );
I long double complex casinl(long double complex z );
Link with -lm.
DESCRIPTION
The
R 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
ČLÁNKY DO MAILU