Math.Sqrt(Double) Yöntem

Tanım

Ad Alanı:

System

Bütünleştirilmiş Kod:

System.Runtime.dll

Source:

Math.cs

Belirtilen sayının karekökünü döndürür.

public:
 static double Sqrt(double d);

public static double Sqrt (double d);

static member Sqrt : double -> double

Public Shared Function Sqrt (d As Double) As Double

Parametreler

d

Double

Karekökünü bulunacak sayı.

Döndürülenler

Double

Aşağıdaki tablodaki değerlerden biri.

d Parametre	Döndürülen değer
Sıfır veya pozitif	pozitif karekök.d
Negatif	NaN
Eşit -tir NaN	NaN
Eşit -tir PositiveInfinity	PositiveInfinity

Örnekler

Kare alanının kare kökü, karenin herhangi bir tarafının uzunluğunu temsil eder. Aşağıdaki örnek, Birleşik Devletler bazı şehirlerin alanını görüntüler ve her şehrin boyutunun bir kareyle temsil edildiğine ilişkin bir izlenim verir.

// Create an array containing the area of some squares.
Tuple<string, double>[] areas =
               { Tuple.Create("Sitka, Alaska", 2870.3),
                 Tuple.Create("New York City", 302.6),
                 Tuple.Create("Los Angeles", 468.7),
                 Tuple.Create("Detroit", 138.8),
                 Tuple.Create("Chicago", 227.1),
                 Tuple.Create("San Diego", 325.2) };

Console.WriteLine("{0,-18} {1,14:N1} {2,30}\n", "City", "Area (mi.)",
                  "Equivalent to a square with:");

foreach (var area in areas)
  Console.WriteLine("{0,-18} {1,14:N1} {2,14:N2} miles per side",
                    area.Item1, area.Item2, Math.Round(Math.Sqrt(area.Item2), 2));

// The example displays the following output:
//    City                   Area (mi.)   Equivalent to a square with:
//
//    Sitka, Alaska             2,870.3          53.58 miles per side
//    New York City               302.6          17.40 miles per side
//    Los Angeles                 468.7          21.65 miles per side
//    Detroit                     138.8          11.78 miles per side
//    Chicago                     227.1          15.07 miles per side
//    San Diego                   325.2          18.03 miles per side

open System

// Create a list containing the area of some cities.
let areas =
    [ "Sitka, Alaska", 2870.3
      "New York City", 302.6
      "Los Angeles", 468.7
      "Detroit", 138.8
      "Chicago", 227.1
      "San Diego", 325.2 ]

printfn "%-18s %14s} %2s\n" "City" "Area (mi.)" "Equivalent to a square with:"

for city, area in areas do
    printfn $"{city,-18} {area,14:N1} {Math.Round(Math.Sqrt(area), 2),14:N2} miles per side"

// The example displays the following output:
//    City                   Area (mi.)   Equivalent to a square with:
//
//    Sitka, Alaska             2,870.3          53.58 miles per side
//    New York City               302.6          17.40 miles per side
//    Los Angeles                 468.7          21.65 miles per side
//    Detroit                     138.8          11.78 miles per side
//    Chicago                     227.1          15.07 miles per side
//    San Diego                   325.2          18.03 miles per side

Module Example
   Public Sub Main()
      ' Create an array containing the area of some squares.
      Dim areas() As Tuple(Of String, Double) = 
                     { Tuple.Create("Sitka, Alaska", 2870.3), 
                       Tuple.Create("New York City", 302.6), 
                       Tuple.Create("Los Angeles", 468.7), 
                       Tuple.Create("Detroit", 138.8), 
                       Tuple.Create("Chicago", 227.1), 
                       Tuple.Create("San Diego", 325.2) }

      Console.WriteLine("{0,-18} {1,14:N1} {2,30}", "City", "Area (mi.)", 
                        "Equivalent to a square with:")
      Console.WriteLine()
      For Each area In areas
        Console.WriteLine("{0,-18} {1,14:N1} {2,14:N2} miles per side", 
                          area.Item1, area.Item2, Math.Round(Math.Sqrt(area.Item2), 2))        
      Next
   End Sub
End Module
' The example displays the following output:
'    City                   Area (mi.)   Equivalent to a square with:
'    
'    Sitka, Alaska             2,870.3          53.58 miles per side
'    New York City               302.6          17.40 miles per side
'    Los Angeles                 468.7          21.65 miles per side
'    Detroit                     138.8          11.78 miles per side
'    Chicago                     227.1          15.07 miles per side
'    San Diego                   325.2          18.03 miles per side

Ayrıca bkz.

• Pow(Double, Double)