   ## Tuesday, 21 February 2017

### Number series program

Number Series #2

(1*1) + (2*2) + (3*3) + (4*4) + (5*5) + ... + (n*n)

Output
Value of n: 5
Sum: 55

The program for the series is written in C# programming language and will accept a number as input. The loops will iterate based on the number of entry.

Note: If you are new to C# and Console Application. Try to code First C# Program

Note: Read articles on how to use Loops and Conditions.

Let’s find out a simple and easy way to code these pattern.

Practical Implementation:

using System;

namespace patternProblem.Number
{
class Number2
{
static void Main(string[] args)
{
Console.WriteLine("Given series is:");
Console.WriteLine("(1*1) + (2*2) + (3*3) + (4*4) + (5*5) + ... + (n*n) ");
Console.WriteLine("----------------------------");
Console.WriteLine();
Console.WriteLine("Enter value of n: ");
Console.WriteLine();
int sum = 0;

Console.WriteLine("-----Output-----");
Console.WriteLine();
for (int i = 1; i <= n; i++)
{
sum = sum + (i * i);
}
Console.WriteLine("Sum of series: " + sum);

}
}
}

Output:
The input number here is 5. So, the program will iterate five times. The output is shown below:

Given series is:
(1*1) + (2*2) + (3*3) + (4*4) + (5*5) + ... + (n*n)
----------------------------

Enter value of n:
5

-----Output-----

Sum of series: 55
Press any key to continue . . .

For any query, comment us below.

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