Complex.Subtract メソッド

定義

オーバーロード

例

次の例では、配列内の各複素数を複素数から減算します。

using System;
using System.Numerics;

public class Example
{
   public static void Main()
   {
      Complex c1 = new Complex(4.93, 6.87);
      Complex[] values = { new Complex(12.5, 9.6),
                           new Complex(4.3, -8.1),
                           new Complex(-1.9, 7.4),
                           new Complex(-5.3, -6.6) };

      foreach (var c2 in values)
         Console.WriteLine("{0} - {1} = {2}", c1, c2,
                           Complex.Subtract(c1, c2));
   }
}
// The example displays the following output:
//       (4.93, 6.87) - (12.5, 9.6) = (-7.57, -2.73)
//       (4.93, 6.87) - (4.3, -8.1) = (0.63, 14.97)
//       (4.93, 6.87) - (-1.9, 7.4) = (6.83, -0.53)
//       (4.93, 6.87) - (-5.3, -6.6) = (10.23, 13.47)

open System.Numerics

let c1 = Complex(4.93, 6.87)

let values =
    [ Complex(12.5, 9.6)
      Complex(4.3, -8.1)
      Complex(-1.9, 7.4)
      Complex(-5.3, -6.6) ]

for c2 in values do
    printfn $"{c1} - {c2} = {Complex.Subtract(c1, c2)}"
// The example displays the following output:
//       (4.93, 6.87) - (12.5, 9.6) = (-7.57, -2.73)
//       (4.93, 6.87) - (4.3, -8.1) = (0.63, 14.97)
//       (4.93, 6.87) - (-1.9, 7.4) = (6.83, -0.53)
//       (4.93, 6.87) - (-5.3, -6.6) = (10.23, 13.47)

Imports System.Numerics

Module Example
   Public Sub Main()
      Dim c1 As New Complex(4.93, 6.87)
      Dim values() As Complex = { New Complex(12.5, 9.6), 
                                  New Complex(4.3, -8.1), 
                                  New Complex(-1.9, 7.4), 
                                  New Complex(-5.3, -6.6) }

      For Each c2 In values
         Console.WriteLine("{0} - {1} = {2}", c1, c2, 
                           Complex.Subtract(c1, c2))
      Next
   End Sub
End Module
' The example displays the following output:
'       (4.93, 6.87) - (12.5, 9.6) = (-7.57, -2.73)
'       (4.93, 6.87) - (4.3, -8.1) = (0.63, 14.97)
'       (4.93, 6.87) - (-1.9, 7.4) = (6.83, -0.53)
'       (4.93, 6.87) - (-5.3, -6.6) = (10.23, 13.47)

注釈

Subtract メソッドを使用すると、複素数を含む減算演算を実行できます。

減算によって実数成分または虚数成分がオーバーフローする場合、その成分の値は Double.PositiveInfinity または Double.NegativeInfinityのいずれかになります。

カスタム演算子をサポートする言語では、Subtraction 同等の演算子グループも使用できます。

1 つの double を受け取る Subtract メソッドは、2 つの複素数を受け取るメソッドよりも効率的です。

public:
 static System::Numerics::Complex Subtract(System::Numerics::Complex left, double right);

public static System.Numerics.Complex Subtract (System.Numerics.Complex left, double right);

static member Subtract : System.Numerics.Complex * double -> System.Numerics.Complex

Public Shared Function Subtract (left As Complex, right As Double) As Complex

public:
 static System::Numerics::Complex Subtract(System::Numerics::Complex left, System::Numerics::Complex right);

public static System.Numerics.Complex Subtract (System.Numerics.Complex left, System.Numerics.Complex right);

static member Subtract : System.Numerics.Complex * System.Numerics.Complex -> System.Numerics.Complex

Public Shared Function Subtract (left As Complex, right As Complex) As Complex

public:
 static System::Numerics::Complex Subtract(double left, System::Numerics::Complex right);

public static System.Numerics.Complex Subtract (double left, System.Numerics.Complex right);

static member Subtract : double * System.Numerics.Complex -> System.Numerics.Complex

Public Shared Function Subtract (left As Double, right As Complex) As Complex