🚀 Programming Example

write a program that performs an arithmetic sequence summation (arithmetic series).

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💻 Practical Program

📘 Step Learning

write a program that performs an arithmetic sequence summation (arithmetic series). The program should accept the following value from the user - first term(a₁), last term (a_n), and number of terms(n). It should then calculate the sum of terms in the series, and also the common difference (d) between terms. All user input must be validated.
write a program that performs an arithmetic sequence summation (arithmetic series). The program should accept the following value from the user - first term(a₁), last term (a_n),

💻 Program Code

#include<stdio.h> 
int main(){

float n, a1, an, d;
float sn;


printf("Enter how many term: ");
scanf("%f",&n);
printf("Enter first term: ");
scanf("%f",&a1);
printf("Enter last term: ");
scanf("%f",&an);
 

sn = (n*(a1+an))/2;

printf("summation: %f \n", sn);

}

🖥 Program Output

Enter how many term: 41
Enter first term: 1
Enter last term: 101
summation: 2091.000000
Press any key to continue . . .

📘 Explanation

n -Total Term

a₁ - is first term

a_n - is last term

d -Common difference

Formula for calculating sum of n terms in arithmetic sequence summation (arithmetis series)

sn = (n*(a1+an))/2;

🎯 How to learn from this example

First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.

🔥 Practice suggestion

Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.

write a program that performs an arithmetic sequence summation (arithmetic series).

💻 Program Code

🖥 Program Output

📘 Explanation

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