C program to find nth term using Arithmetic progrssion

C program to find nth term in given terms. Use Arithmetic progrssion in the program.

An arithmetic progression is a sequence of numbers.

Arithmetic progression,

an = a1+(n-1)*d

an = the nᵗʰ term in the sequence

a1 = the first term in the sequence

d = the common difference between terms

/* C program to find nth term using

*Arithmetic progrssion

*/

#include <stdio.h>

int main()

{

    int an, a1, n, d;

    //3 7 11 15 19 23

    a1 = 3; // First term

    n = 6; // Number of terms

    d = 4; //7-3

    /*Formula of arithmetic progrssion

    *an = a1+(n-1)d

    *an -> nth term

    *a1 -> first term

    *n -> Number of terms

    *d -> Difference of terms

    */

    an = a1+(n-1)*d;

    printf("nth term is =%d",an);

    

    return 0;

}

Output:

nth term is =23