1. What does it mean by recursion?

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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B. Recursion (10 Marks)
1. What does it mean by recursion?
(3 marks)
2. To demonstrate the mechanics of recursion, a simple mathematical example is
computing the value of the factorial function.
1
def factorial(n):
if n == 0:
2
return 1
4
else:
return n
factorial (n-1)
Figure B2
Explain how recursion is used to design the Python implementation of a factorial
function as shown in the code fragment of Figure B2. You can use diagram to aid your
explanation.
(5 marks)
3. Give two examples where the concept of recursion is being implemented.
(2 marks)
Transcribed Image Text:B. Recursion (10 Marks) 1. What does it mean by recursion? (3 marks) 2. To demonstrate the mechanics of recursion, a simple mathematical example is computing the value of the factorial function. 1 def factorial(n): if n == 0: 2 return 1 4 else: return n factorial (n-1) Figure B2 Explain how recursion is used to design the Python implementation of a factorial function as shown in the code fragment of Figure B2. You can use diagram to aid your explanation. (5 marks) 3. Give two examples where the concept of recursion is being implemented. (2 marks)
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