C# | Math.Asin() Method
Math.Asin() is an inbuilt Math class method which returns the angle whose sine value is given as a double value argument. If the argument is NaN, then the result will be NaN.
public static double Asin(double num)
num: It is the number that represents a sine and type of this parameter is System.Double. It must be greater than or equal to -1, but less than or equal to 1.
Return Type: Returns an angle Θ, measured in radians and its type is System.Double. Here the angle is always measured in radians, such that -π/2 ≤ Θ ≤ π/2.
Note: If the value of the num is greater than 1 or less than -1 or equals to NaN, then this method always returns NaN as result. To convert the radians(return value) to degrees multiply it by 180 / Math.PI. A positive return value always represents a counter clock-wise angle from the x-axis and a negative return value always represents a clockwise angle.
Input : Math.Asin(2) Output : NaN Input : Math.Asin(0.3584) Output : 0.366553473829125 Input : Math.Asin(0.0) Output : 0 Input : Math.Asin(-0.0) Output : 0 Input : Math.Asin(Double.PositiveInfinity) Output : NaN Input : Math.Asin(Double.NegativeInfinity) Output : NaN
Program: To illustrate the Math.Asin() method
NaN NaN 0.366553473829125 0 0 NaN NaN NaN
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