C MathCopySign Examples
In this tutorial, we will learn about the C# Math.CopySign() method, and learn how to use this method to get a value formed using magnitude of one number and the sign of other number, with the help of examples.
CopySignDouble x, Double y
Math.CopySign(x, y) returns a value with the magnitude of x and the sign of y.
Syntax
The syntax of CopySign() method is
Math.CopySign(Double x, Double y)
where
| Parameter | Description |
|---|---|
| x | The Double value whose magnitude is used in the result. |
| y | The Double value whose sign is the used in the result. |
Return Value
The method returns Double value.
Example 1 CopySignDouble, Double
In this example, we will use Math.CopySign() method and get a number whose magnitude is from the first argument and the sign is from second argument.
C# Program
using System;
class Example {
static void Main(string[] args) {
Double x, y, result;
x = 2;
y = -8;
result = Math.CopySign(x, y);
Console.WriteLine($"CopySign({x}, {y}) = {result}");
x = 2;
y = 8;
result = Math.CopySign(x, y);
Console.WriteLine($"CopySign({x}, {y}) = {result}");
x = -2;
y = 8;
result = Math.CopySign(x, y);
Console.WriteLine($"CopySign({x}, {y}) = {result}");
}
}
Output
CopySign(2, -8) = -2 CopySign(2, 8) = 2 CopySign(-2, 8) = 2
For CopySign(2, -8), magnitude is copied from 2 and sign is copied from -8, hence the result -2.
For CopySign(2, 8), magnitude is copied from 2 and sign is copied from 8, hence the result 2.
For CopySign(-2, 8), magnitude is copied from -2 and sign is copied from 8, hence the result 2.
Conclusion
In this C# Tutorial, we have learnt the syntax of C# Math.CopySign() method, and also learnt how to use this method with the help of C# example programs.