asin(3) - NetBSD Manual Pages

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ASIN(3)                 NetBSD Library Functions Manual                ASIN(3)


NAME
asin, asinf, asinl -- arc sine function
LIBRARY
Math Library (libm, -lm)
SYNOPSIS
#include <math.h> double asin(double x); float asinf(float x); long double asinl(long double x);
DESCRIPTION
The asin(), asinf(), and asinl() functions compute the principal value of the arc sine of x in the range [-pi/2, +pi/2].
RETURN VALUES
If |x|>1, asin(x), asinf(x), and asinl(x) return NaN and set the global variable errno to EDOM.
SEE ALSO
acos(3), atan(3), atan2(3), cos(3), cosh(3), math(3), sin(3), sinh(3), tan(3), tanh(3)
STANDARDS
The asin() function conforms to ISO/IEC 9899:1999 (``ISO C99''). NetBSD 9.1 January 29, 2013 NetBSD 9.1
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