How to Get Sum of Series 2+4+6+8+…. +n in C Program

It is easy to get sum of series 2 + 4 + 6 + 8 + . . . + n in C program. In this tutorial, I’ll show you how to do it in easy way in C program. Here is a simple code for it:

`#include <stdio.h>`

``` ```

```int main() { int n,i; int s=0;```

``` printf("Enter the value of n of the series: "); scanf("%d",&n);```

``` printf("Sum of the series: ");```

``` for (i =2; i <= n; i=i+2) { s=s+i; if((i+2)>=n) printf("%d = %d ",i,s); else printf("%d + ",i); }```

``` return 0; }```

Output:
``` Enter the value of n of the series: 10 Sum of the series: 2 + 4 + 6 + 8 + 10 = 30 ```

In above code, I have tried to show number, plus sign, result and in a word equation  by iterating from 2 to n using for loop by incrementing 2 and as well as summing up the series in the iteration.

In this tutorial, I have shown how to get sum of series 2 + 4 + 6 + 8 + . . . + n in C Program. Hope you have enjoyed the tutorial. If you want to get updated, like the facebook page http://www.facebook.com/freetechtrainer and stay connected.