Manual Pages for UNIX Darwin command on man asin
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Manual Pages for UNIX Darwin command on man asin

ASIN(3) BSD Library Functions Manual ASIN(3)

NAME

aassiinn - arc sine function

SYNOPSIS

##iinncclluuddee <>

double aassiinn(double x); long double aassiinnll(long double x); float aassiinnff(float x);

DESCRIPTION

The aassiinn() function computes the principal value of the arc sine of x.

The result is in the range [-pi/2, +pi/2].

SSPPEECCIIAALL VVAALLUUEESS

aassiinn(+-0) returns +-0.

aassiinn(x) returns a NAN and raises the "invalid" floating-point exception

for |x| > 1.

SEE ALSO

acos(3), atan(3), atan2(3), cos(3), cosh(3), sin(3), sinh(3), tan(3), tanh(3), math(3) STANDARDS The aassiinn() function conforms to ISO/IEC 9899:1999(E). BSD November 15, 2002 BSD




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