std::asin

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Defined in header <cmath>
float       asin( float arg );
double      asin( double arg );
long double asin( long double arg );
double      asin( Integral arg );
(since C++11)

Computes arc sine of arg.

[edit] Parameters

arg - value of a floating-point or Integral type

[edit] Return value

Arc sine of arg in radians in the range of [-π/2; π/2] radians.

Domain error occurs if arg is outside the range [-1.0; 1.0]. NAN is returned in that case.

[edit] See also

computes arc cosine (arccos(x))
(function)
computes arc tangent (arctan(x))
(function)
arc tangent, using signs to determine quadrants
(function)
computes sine (sin(x))
(function)
computes arc sine of a complex number (arcsin(z))
(function template)
applies the function std::asin to each element of valarray
(function template)
C documentation for asin