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20 lines
493 B
Python
20 lines
493 B
Python
# Python program to find the sum of natural numbers up to n using recursive function
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def recur_sum(n):
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"""Function to return the sum
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of natural numbers using recursion"""
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if n <= 1:
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return n
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else:
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return n + recur_sum(n-1)
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# change this value for a different result
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num = 16
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# uncomment to take input from the user
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#num = int(input("Enter a number: "))
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if num < 0:
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print("Enter a positive number")
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else:
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print("The sum is",recur_sum(num)) |