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1. Sum of Squares 2. Sum of Cubes 3. Alternating Sum 4. Harmonic Series Sum 5. Geometric Series Sum 6. Print Nth Row of Pascal Triangle 7. Catalan Numbers 8. Tribonacci Series 9. Lucas Series 10. Pell Series

Harmonic Series Sum

Calculate 1 + 1/2 + 1/3 + ... + 1/n.

IntermediatePhase 6 - Category 4: Mathematical CombinationsExample 4 of 10

harmonic-series-sum.py

1# Take n
2n = int(input("Enter n: "))
3
4# Calculate harmonic sum
5total = 0.0
6for i in range(1, n + 1):
7    total += 1.0 / i
8
9print(f"Harmonic sum: {total}")

Output

Enter n: 5
Harmonic sum: 2.283333333333333

What's going on

Sum reciprocals of numbers.

Key Concepts:

Loop from 1 to n

Add 1/i to sum

Use float division

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PreviousAlternating Sum NextGeometric Series Sum