Complex.Asin(Complex) 方法
定义
返回表示指定复数的反正弦值的角度。Returns the angle that is the arc sine of the specified complex number.
public:
static System::Numerics::Complex Asin(System::Numerics::Complex value);
public static System.Numerics.Complex Asin (System.Numerics.Complex value);
static member Asin : System.Numerics.Complex -> System.Numerics.Complex
Public Shared Function Asin (value As Complex) As Complex
参数
- value
- Complex
一个复数。A complex number.
返回
表示 value 的反正弦值的角度。The angle which is the arc sine of value.
示例
下面的示例演示 Asin 方法。The following example illustrates the Asin method. 其中显示,将方法返回的值传递 Asin 到方法将 Sin 返回原始 Complex 值。It shows that passing the value returned by the Asin method to the Sin method returns the original Complex value.
using System;
using System.Numerics;
public class Example
{
public static void Main()
{
Complex[] values = { new Complex(2.3, 1.4),
new Complex(-2.3, 1.4),
new Complex(-2.3, -1.4),
new Complex(2.3, -1.4) };
foreach (Complex value in values)
Console.WriteLine("Sin(Asin({0})) = {1}",
value, Complex.Sin(Complex.Asin(value)));
}
}
// The example displays the following output:
// Sin(Asin((2.3, 1.4))) = (2.3, 1.4)
// Sin(Asin((-2.3, 1.4))) = (-2.3, 1.4)
// Sin(Asin((-2.3, -1.4))) = (-2.3, -1.4)
// Sin(Asin((2.3, -1.4))) = (2.3, -1.4)
Imports System.Numerics
Module Example
Public Sub Main()
Dim values() As Complex = { New Complex(2.3, 1.4),
New Complex(-2.3, 1.4),
New Complex(-2.3, -1.4),
New Complex(2.3, -1.4) }
For Each value As Complex In values
Console.WriteLine("Sin(Asin({0})) = {1}",
value, Complex.Sin(Complex.Asin(value)))
Next
End Sub
End Module
' The example displays the following output:
' Sin(Asin((2.3, 1.4))) = (2.3, 1.4)
' Sin(Asin((-2.3, 1.4))) = (-2.3, 1.4)
' Sin(Asin((-2.3, -1.4))) = (-2.3, -1.4)
' Sin(Asin((2.3, -1.4))) = (2.3, -1.4)
注解
Asin复数的方法与实数的方法相对应 Math.Asin 。The Asin method for complex numbers corresponds to the Math.Asin method for real numbers.
Asin方法使用以下公式:The Asin method uses the following formula:
-ImaginaryOne * Log (ImaginaryOne * 值 + Sqrt (One 值 * 值) ) -ImaginaryOne * Log(ImaginaryOne * value + Sqrt(One - value * value))