Complex.Sin(Complex) 方法

定义

返回指定复数的正弦值。Returns the sine of the specified complex number.

public:
 static System::Numerics::Complex Sin(System::Numerics::Complex value);
public static System.Numerics.Complex Sin (System.Numerics.Complex value);
static member Sin : System.Numerics.Complex -> System.Numerics.Complex
Public Shared Function Sin (value As Complex) As Complex

参数

value
Complex

一个复数。A complex number.

返回

value 的正弦值。The sine of value.

示例

下面的示例演示 Sin 方法。The following example illustrates the Sin method. 它显示将 Asin 方法返回的值传递到 Sin 方法返回原始 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

复数的 Sin 方法对应于实数的 Math.Sin 方法。The Sin method for complex numbers corresponds to the Math.Sin method for real numbers.

Sin 方法使用以下公式来计算复数 a + bi 的正弦值:The Sin method uses the following formula to calculate the sine of the complex number a + bi:

Sin(a) * Cosh(b)、Cos(a) * Sinh(b))(Sin(a) * Cosh(b), Cos(a) * Sinh(b))

适用于

另请参阅