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C# / .NET - Math.Sqrt() method example
0 points
Math Sqrt is a static method that returns a number which is the square root of input value. The method works only on positive real numbers.
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using System;2
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public class Program4
{5
public static void Main(string[] args)6
{7
Console.WriteLine( Math.Sqrt( 4 ) ); // 28
Console.WriteLine( Math.Sqrt( 9 ) ); // 39
10
Console.WriteLine( Math.Sqrt( 2 ) ); // 1.414213562373095111
Console.WriteLine( Math.Sqrt( 0.5 ) ); // 0.707106781186547612
Console.WriteLine( Math.Sqrt( 0 ) ); // 013
Console.WriteLine( Math.Sqrt( -1 ) ); // NaN14
}15
}| Syntax |
xxxxxxxxxx1 namespace System2 {3 public static class Math4 {5 // ...6 public static double Sqrt(double number) { ... }7 // ...8 }9 } |
| Parameters | number - double value in the range 0 to +Infinity (primitive value). |
| Result |
Square root If the operation can not be executed |
| Description | Sqrt is a static method that returns a number which is square root of input value. The method works only on positive real numbers. |
In this example, the way how to calculate square root using power function is presented.
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using System;2
3
public class Program4
{5
static double CalculateSqrt(double value)6
{7
return Math.Pow(value, 0.5);8
}9
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public static void Main(string[] args)11
{12
// Examples:13
Console.WriteLine( CalculateSqrt( 4 ) ); // 214
Console.WriteLine( CalculateSqrt( 9 ) ); // 315
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Console.WriteLine( CalculateSqrt( 2 ) ); // 1.414213562373095117
Console.WriteLine( CalculateSqrt( 0.5 ) ); // 0.707106781186547618
Console.WriteLine( CalculateSqrt( 0 ) ); // 019
Console.WriteLine( CalculateSqrt( -1 ) ); // NaN20
}21
}