MathF.Asin()方法用于返回其正弦值作为单个(或浮点)值参数给出的角度。如果参数为NaN,则结果将为NaN。
Syntax: public static float Asin (float x);
Here, it takes a standard floating point number.
Return Value: This method returns an angle θ, measured in radians, its type is System.Single and value will be less than Single.MaxValue.
下面的程序将说明上述方法的使用:
范例1:
// C# program to demonstrate the
// MathF.Asin(Single) Method
using System;
class GFG {
// Main Method
public static void Main()
{
// Declaring and initializing value
float value = 0.7f;
// getting absolute angle value in float
// using Asin() method
float result = MathF.Asin(value);
// Display the value
Console.WriteLine("Angle is {0}", result);
}
}
输出:
Angle is 0.7753975
范例2:
// C# program to demonstrate the
// MathF.Asin(Single) Method
using System;
using System.Globalization;
class GFG {
// Main Method
public static void Main()
{
// calling get() method
get(0.19f);
get(Single.NaN);
get(Single.NegativeInfinity);
get(Single.PositiveInfinity);
}
// defining get() method
public static void get(float value)
{
// getting absolute angle value in float
// using Asin() method
float result = MathF.Asin(value);
// Display the value
Console.WriteLine("Asin({0}) will be {1}",
value, result);
}
}
输出:
Asin(0.19) will be 0.1911621
Asin(NaN) will be NaN
Asin(-Infinity) will be NaN
Asin(Infinity) will be NaN