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2.1.2 Understanding Flowchart Symbols
To draw a flowchart, following symbols are used for various purposes.
START / INPUT / PROCESS DECISION FLOW LINE CONNECTOR
STOP OUTPUT BOX
Advantages of Flowchart:
1. Improves communication 2. Provides visual clarity
3. Enables effective analysis 4. Aids in problem-solving
5. Assists in documentation
2.1.3 Developing Flowchart
To understand how to develop a solution to a problem using a flowchart, let’s consider an example:
Problem: To calculate the average of three given numbers.
Input: We need to input three numbers.
Process:
1. Find the sum of these three numbers.
2. Divide the total sum by 3 to get the average.
Output: Display the average
Algorithmically, we have written it; now we will represent it using a flowchart.
Start
Input N1,N2, N3
Sum=N1+N2+N3
Processing
Average=Sum/3
Print Average
Start and Stop are
known as Terminator
Stop
Fig. 2.1
Python 15
