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1. Print Squares from 1 to N 2. Print Cubes from 1 to N 3. Numbers Divisible by 7 4. Find HCF (GCD) Using Loops 5. Find LCM Using Loops 6. Print All Factors 7. Sum of All Factors 8. Strong Number Check 9. First N Terms of AP 10. First N Terms of GP 11. Print Harmonic Series 12. Sum of Harmonic Series 13. Alternating Series Sum

Sum of Harmonic Series

Calculate sum of harmonic series.

IntermediatePhase 2 - Level 3: Mathematical & Logical PatternsExample 12 of 13

sum-of-harmonic-series.py

1# Take n
2n = int(input("Enter n: "))
3
4# Calculate sum
5harmonic_sum = 0
6for i in range(1, n + 1):
7    harmonic_sum += 1 / i
8
9print(f"Sum: {harmonic_sum:.4f}")

Output

Enter n: 5
Sum: 2.2833

What's going on

Add reciprocals to get harmonic sum.

Key Concepts:

Sum 1/i for i from 1 to n

Accumulate in loop

Format decimal output

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