The n-th harmonic is the sum of the reciprocals of the first n natural numbers given by: H₁ = Σ = = 1+ k=1 1 1 + + + 234 1 +- n (i) Write a recursive algorithm of this function returning, Hn, with nε N. (ii) Give a recurrence relation for the number of divisions the recursive algorithm calculates for an input n ε N. iii) Solve the recurrence relation and give the O(n) of the algorithm.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Chapter1: Introduction
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The n-th harmonic is the sum of the
reciprocals of the first n natural numbers
given by:
1
H₁=Σ-
k=1
1 1
+
2 3
-
4
+
1
+-
n
(i) Write a recursive algorithm of this
function returning, Hn, with nε N.
(ii) Give a recurrence relation for the
number of divisions the recursive
algorithm calculates for an input n & N.
iii) Solve the recurrence relation and give
the O(n) of the algorithm.
(57)
Transcribed Image Text:The n-th harmonic is the sum of the reciprocals of the first n natural numbers given by: 1 H₁=Σ- k=1 1 1 + 2 3 - 4 + 1 +- n (i) Write a recursive algorithm of this function returning, Hn, with nε N. (ii) Give a recurrence relation for the number of divisions the recursive algorithm calculates for an input n & N. iii) Solve the recurrence relation and give the O(n) of the algorithm. (57)
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