Guardian Native C Library Calls Reference Manual (G06.29+, H06.08+, J06.03+)

casin(3) Guardian Native C Library Calls Reference Manual

NAME

casin - Computes the complex arc sine

LIBRARY

H-series and J-series native Guardian processes: $SYSTEM.ZDLLnnn.ZCREDLL

32-bit H-series and J-series OSS processes: /G/system/zdllnnn/zcredll

64-bit H-series and J-series OSS processes: /G/system/zdllnnn/ycredll

SYNOPSIS

#include <complex.h>

double complex casin(

double complex z);

PARAMETERS

z Speciﬁes a double complex value.

DESCRIPTION

The casin() function computes the complex arc sine of z, with branch cuts outside the interval

[-1,+1] along the real axis.

NOTES

This function is implemented only for the IEEE_ﬂoat ﬂoating-point option. Applications using

this function cannot be compiled if the speciﬁed ﬂoating-point option is Tandem_ﬂoat.

RETURN VALUES

The casin() function returns the complex arc sine of z in the range of a strip mathematically

unbound along the imaginary axis and in the interval [-π/2, +π/2] along the real axis.

ERRORS

No errors are deﬁned.

RELATED INFORMATION

Functions: asin(3), asinh(3), casinf(3), casinl(3), csin(3).

STANDARDS CONFORMANCE

This function conforms to the ISO/IEC 9899:1999 standard.

This function conforms to the IEEE Std 1003.1, 2004 Edition.

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