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Example 4: Write an algorithm and draw a flowchart to calculate the factorial of a number.
Algorithm: Flowchart:
Step 1: Start. Start
Step 2: Read the number n.
Read n
Step 3: Let i=1, fact=1
Step 4: Check If i < = n Then Repeat i = 1, fact = 1
Step 5 and 6 until i=n
Step 5: fact=fact*i Is
i < = No
Step 6: i=i+1 n?
Step 7: Print fact Yes
Step 8: Stop. fact = fact*i
Print fact
i = i + 1
Stop
Interdisciplinary Learning Activity
Write an algorithm to calculate the area of a triangle.
MIND MAPS
A Mind Map is a also a problem-solving technique that allows us to organise ideas, thoughts, or concepts
and their relationship graphically.
In this technique, we pick up the ideas that have common features. These ideas are then grouped
under one category, and the different categories are linked to the main topic using lines or arrows.
Algorithmic Intelligence 107

