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

Parameters

arg

-

floating point value

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.

See also

acos	computes arc cosine (arccos(x)) (function)
atan	computes arc tangent (arctan(x)) (function)
atan2	arc tangent, using signs to determine quadrants (function)
sin	computes sine (sin(x)) (function)
asin(std::complex) (C++11)	computes arc sine of a complex number (arcsin(z)) (function template)
asin(std::valarray)	applies the function std::asin to each element of valarray (function template)