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CASIN (3) | C library functions | Unix Manual Pages | :man

NAME

casin, casinf, casinl - complex arc sine

CONTENTS

Synopsis
Description

SYNOPSIS

#include <complex.h>

"double complex casin(double complex "z);

"float complex casinf(float complex "z);

"long double complex casinl(long double complex "z);

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"

clog(3), ccos(3)


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