Summation Example

Description

This script shows how a mathematical operation, in this case a summation, can be applied in terms of code. In this instance we've got , where is the input parameter.

You can see the mathematics at WolframAlpha. Moreover, you can view the Python Version or C Version of the script.

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Usage

Modify Line 5 changing n to any value you wish to test.

With the default parameter of int n = 5 we get the following output:

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Code

class SquareToN {

	public static void main( String[] args ){
	
		int n = 5;
		System.out.println( "Summation of (i^2) from i = 0 to n = " + n + " is " + DoSquaring( n ) );
	
	}
	
	public static int DoSquaring( int n ){
	
		int x = 0;
		for( int i = 0; i <= n; i++ )
			x = x + ( i * i );
			
		return x;
	
	}

}

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