Question

Написать программу,которая вычисляет сумму первых n членов ряда 1+1/2+1/3+1/4… Количество суммируемых членов ряда задается во время работы программы. С++ Написати програму, яка обчислює суму перших n членів ряду: 1+1/2+1/3+1/4… Кількість підсумованих членів ряду задається під час роботи програми ряду задається під час роботи програми.С++

Answer 1

#include <iostream>

using namespace std;

int main() {

int  n;

double s = 0;

cin >> n;

for (double i = 1; i <= n; i++) {

 s += 1 / i;

}

cout << s;

return 0;

}

Answer 2

To calculate the sum of the first n terms of the series 1 + 1/2 + 1/3 + 1/4 + ..., you can write a program that iterates from 1 to n and adds the reciprocal of each number to a running total. Here's an example of how you can implement this program in Python:

def calculate_series_sum(n):
    total = 0.0
    for i in range(1, n+1):
        total += 1 / i
    return total

# Prompt the user to enter the value of n
n = int(input("Enter the number of terms to sum: "))

# Call the function to calculate the sum
series_sum = calculate_series_sum(n)

# Print the result
print("The sum of the first", n, "terms is:", series_sum)

This program defines a function `calculate_series_sum` that takes an integer `n` as input and returns the sum of the first `n` terms of the series. It then prompts the user to enter the value of `n`, calls the function with the user's input, and prints the result.

Please note that this program assumes the user will enter a positive integer for `n`. It does not handle invalid inputs or negative values. You can add input validation if needed.

Let me know if you have any further questions!