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 and the code at CodePad. Moreover, you can view the Python Version or C# Version of the script.

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Usage

Modify Line 7 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

#include <stdio.h>
 
int squareToN( int n );
 
int main(){
 
	int n = 5;
	int result = squareToN( n );
	printf( "Summation of (i^2) from i = 0 to n = %d is %d", n, result );
 
	return 0;
 
}
 
int squareToN( int n ){
 
	int i, x = 0;
	for( i = 0; i <= n; i++ ){
		x = x + ( i * i );
	}
 
	return x;
 
}

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