Table of Contentsasin - arc sine function #include <math.h>
double asin(double x); The asin() function calculates the arc sine of x; that is the value whose sine is x. If x falls outside the range -1 to 1, asin() fails and errno is set. The asin() function returns the arc sine in radians and the value is mathematically defined to be between -PI/2 and PI/2 (inclusive). - EDOM
- x is out of range.
SVID 3, POSIX, BSD 4.3, ISO 9899 acos(3), atan(3), atan2(3), cos(3), sin(3), tan(3)
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