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Program 9 To print the squares of the first five natural numbers.

Program9.py Output
File Edit Format Run Options Window Help 1

for i in range(1,6): 4
9
print(i*i)
16
25

Program 10 To find the sum of the first 10 natural numbers.

Program10.py Output
File Edit Format Run Options Window Help 55

sum=0
for i in range(0,11):
sum+=i
print(sum)

Program 11 To print the first five multiples of a number.

Program11.py Output
File Edit Format Run Options Window Help Enter a number: 7
num = int(input("Enter a number: ")) 7 x 1 = 7
7 x 2 = 14
for i in range(1, 6):
7 x 3 = 21
print(num, "x", i, "=", num * i)
7 x 4 = 28
7 x 5 = 35

WHILE LOOP IN PYTHON
A while loop repeats a set of instructions as long as a given Start
condition is true. It checks the condition before each repetition. If
the condition is true, the loop executes; if it’s false, the loop stops False

and the control moves to the statement outside the loop. It is often While condition
used when the number of repetitions is not known in advance.
True
Syntax of while statement: SHORT SIGN
Command
while <condition>:
To indent the code: Tab
Statement block to be
repeated Stop

141
Flow of Control in Python