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SOME MORE PROGRAMS

Program 10: To print a pattern using while loop.

Program10.py

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#Program to show a pattern using while loop.
a = 5
while a>= 1:
print("@"*a)
a -= 1

On executing the above program, you will get the following output:

Output

@@@@@
@@@@
@@@
@@
@

Program 11: To add first five natural numbers.

Program11.py
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sum=0
a=1
while (a<=5):
sum=sum+a

a=a+1
print("the sum of the first five natural numbers is", sum)

Loops in Python 119