C# Math Sign(Single)

Description

Math Sign(Single) returns a value indicating the sign of a single-precision floating-point number.

Syntax

Math.Sign(Single) has the following syntax.

public static int Sign(
  float value
)

Parameters

Math.Sign(Single) has the following parameters.

• value - A signed number.

Returns

Math.Sign(Single) method returns A number that indicates the sign of value, as shown in the following table. Return value Meaning -1 value is less than zero. 0 value is equal to zero. 1 value is greater than zero.

Example

The following example demonstrates how to use the Sign(Single) method to determine the sign of a Single value and display it to the console.

using System;// ww  w.ja v  a  2  s.co m

class Sample 
{
    public static void Main() 
    {
        float    xSingle1  = 0.0f;

        Console.WriteLine(Test(Math.Sign(xSingle1)));
    }
    public static String Test(int compare)
    {
        if (compare == 0) 
           return "equal to";
        else if (compare < 0)  
            return "less than";
        else  
            return "greater than";
    }
}

The code above generates the following result.