create a Python script with a recursive function to display the sum of the first n integers, where n is entered by the user. There is no need to create a class similar to how Java works. 2. Name your function find_sum.
Question
create a Python script with a recursive function to display the sum of the first n integers, where n is entered by the user. There is no need to create a class similar to how Java works. 2. Name your function find_sum.
Solution
Sure, here is a simple Python script that uses a recursive function to calculate the sum of the first n integers:
def find_sum(n):
if n == 0:
return 0
else:
return n + find_sum(n-1)
n = int(input("Enter a number: "))
print("The sum of the first", n, "integers is:", find_sum(n))
Here's how it works:
- The function
find_sum(n)is defined. This function takes an integernas input. - Inside the function, we check if
nis 0. If it is, we return 0. This is the base case of our recursion. - If
nis not 0, we returnnplus the result of callingfind_sum(n-1). This is the recursive case. - Outside the function, we ask the user to enter a number and store it in
n. - We then call
find_sum(n)and print the result.
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