asin(3M)

NAME | SYNOPSIS | API RESTRICTIONS | DESCRIPTION | RETURN VALUES | ATTRIBUTES | SEE ALSO | STANDARDS

NAME

asin- arc sine function

SYNOPSIS

$(NUCLEUS_DIR)/lib/libm.a
#include <math.h>

double asin(double x);

API RESTRICTIONS

The function or functions documented here may not be used safely in all application contexts with all APIs provided in the ChorusOS 5.0 product.

See API(5FEA) for details.

DESCRIPTION

The asin() function computes the principal value of the arc sine of x. A domain error occurs for arguments not in the range [-1, +1]. For information about errors due to rounding off, see Intro(3M).

RETURN VALUES

The asin() function returns the arc sine in the range [-Pi/2, +Pi/2] radians. If | x | > 1, errno is set to EDOM and a system-dependent notification is performed.

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Interface Stability	Evolving

SEE ALSO

acos(3M), atan(3M), atan2(3M), cos(3M), cosh(3M), sin(3M), sinh(3M), tan(3M), tanh(3M), Intro(3M)

STANDARDS

The asin() function conforms to ANSI-C.

ChorusOS 5.0  Last Revised December 2001

NAME | SYNOPSIS | API RESTRICTIONS | DESCRIPTION | RETURN VALUES | ATTRIBUTES | SEE ALSO | STANDARDS