Page 94 - Computer Science Class 11 Without Functions
P. 94
Variable: A variable is a name for a sequence of memory locations.
A flowchart is a pictorial representation of an algorithm. Some common symbols used in a flowchart are as
follows:
Symbol Name Symbol usage Description
Start/Stop Used to depict the start and stop of an algorithm
Process Used to depict some arithmetic operation
Input/Output Used to depict Read/Input and Write/Print
Arrow Used to connect shapes depicting the flow of control
Decision box Represents a condition that may yield True or False.
The above algorithm may be represented as the following flowchart (Fig 4.2):
Start
Input principal, rate, time
principal × rate × time
interest =
100
Print interest
Stop
Fig 4.2: Flowchart for computing simple interest
Below, we show a translation of the above description of the computation of simple interest into Python:
principal = int(input('enter Principal amount: '))
rate = int(input('enter interest rate per annum: '))
92 Touchpad Computer Science-XI

