Find the sum of GP or geometric progression series in the c program; Through this tutorial, we will learn how to find sum of GP series or geometric progression series using formula, for loop and function in c programs.
Programs to Find Sum of Geometric Progression Series in C
- C Program to Find Sum of Geometric Progression Series using Formula
- C Program to Find Sum of Geometric Progression Series using For Loop
- C Program to Find Sum of Geometric Progression Series using Function
C Program to Find Sum of Geometric Progression Series using Formula
/* C Program to find Sum of Geometric Progression Series */
#include <stdio.h>
#include<math.h>
int main() {
int a, n, r;
float tn, sum = 0;
printf(" Please Enter First Number of an G.P Series: ");
scanf("%d", &a);
printf(" Please Enter the Total Numbers in this G.P Series: ");
scanf("%d", &n);
printf(" Please Enter the Common Ratio: ");
scanf("%d", &r);
sum = (a * (1 - pow(r, n ))) / (1- r);
tn = a * (pow(r, n - 1));
printf("\n The Sum of Geometric Progression Series = %.2f", sum);
printf("\n The tn Term of Geometric Progression Series = %.2f \n", tn);
return 0;
}
The output of the above c program; is as follows:
Please Enter First Number of an G.P Series: 1 Please Enter the Total Numbers in this G.P Series: 5 Please Enter the Common Ratio: 2 The Sum of Geometric Progression Series = 31.00 The tn Term of Geometric Progression Series = 16.00
C Program to Find Sum of Geometric Progression Series using For Loop
/* C Program to find Sum of Geometric Progression Series */
#include <stdio.h>
#include<math.h>
int main() {
int a, n, r, value, i;
float sum = 0;
printf(" Please Enter First Number of an G.P Series: ");
scanf("%d", &a);
printf(" Please Enter the Total Numbers in this G.P Series: ");
scanf("%d", &n);
printf(" Please Enter the Common Ratio: ");
scanf("%d", &r);
value = a;
printf("G.P Series : ");
for(i = 0; i < n; i++)
{
printf("%d ", value);
sum = sum + value;
value = value * r;
}
printf("\n The Sum of Geometric Progression Series = %f\n", sum);
return 0;
}
The output of the above c program; is as follows:
Please Enter First Number of an G.P Series: 2 Please Enter the Total Numbers in this G.P Series: 5 Please Enter the Common Ratio: 2 G.P Series : 2 4 8 16 32 The Sum of Geometric Progression Series = 62.000000
C Program to Find Sum of Geometric Progression Series using Function
/* C Program to find Sum of Geometric Progression Series */
#include <stdio.h>
#include<math.h>
int sumofGP(int a, int n, int r)
{
int sum = (a * (1 - pow(r, n))) / (1- r);
return sum;
}
int main() {
int a, n, r;
float sum = 0;
printf(" Please Enter First Number of an G.P Series: ");
scanf("%d", &a);
printf(" Please Enter the Total Numbers in this G.P Series: ");
scanf("%d", &n);
printf(" Please Enter the Common Ratio: ");
scanf("%d", &r);
sum = sumofGP(a, n, r);
printf("\n The Sum of Geometric Progression Series = %f\n", sum);
return 0;
}
The output of the above c program; is as follows:
Please Enter First Number of an G.P Series: 2 Please Enter the Total Numbers in this G.P Series: 5 Please Enter the Common Ratio: 2 The Sum of Geometric Progression Series = 62.000000
