Introduction to Python

Form 3 - Computer

2023-2024

Floor 4 - Computer Room

Mr. Peter

Outline

Outline

While Loop

1

Number Sequences

2

Exercises

3

While Loop Statement

1.

2.

Tab

while Condition :

Command1

While Loop Statement

1.

2.

while i < 5 :

3.

Tab

4.

Tab

i = 0

print(i)

i = i + 1

Write a Python code to create a loop printing number from 1 to 100, each loop increases 5.

Question

While loop statement - Ex01

0

5

10

15

...

95

100

Example

Save the file as "XX_YYYY_Ex01.py"

Write a Python code to create a loop printing number from 1 to 1024, each loop multiplied by two.

Question

While loop statement - Ex02

1

2

4

8

...

512

1024

Example

Save the file as "XX_YYYY_Ex02.py"

Write a Python program that calculates and prints the values of 𝑦 for 𝑥 ranging from 1 to 20, where 𝑦 is defined by the equation              . Your program should use a for loop to iterate through the values of 𝑥 and print the corresponding 𝑦 values.

Question

While loop statement - Ex03

x = 1, y = 1
x = 2, y = 4
x = 3, y = 9

x = 4, y = 16
...

x = 19, y = 361
x = 20, y = 400

Example

Save the file as "XX_YYYY_Ex03.py"

y = x^2
y = x^2
print( 'x = ', x, ', y = ', y )

String concatenation for printing

* Consider looping x from 1 to 20, then loop y from 1 to 400 within the same while loop.

Python - While Loop 02

By Mr Peter

Python - While Loop 02

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