Printing patterns in python

   Till now we learnt about different loops  and control statements in Python and we can use 
this concept to print different patterns , patterns of alphabet ,Numbers and symbols like # , *
We can use simply nested for loops  (2) outer for loop will manage number of rows and inner for loop decide the number of columns  in pattern 
     We will discuss here some important question that most likely ask in interviews and aptitude tests 

Q.1 Write a code to print following pattern in Python
 # # # 
 # # # 
 # # # 

Solution =
                  for a in range (3):
                     for j in range (3):
                         print("#",end ="")
                     print()

  

In above question there  are three rows and three columns  of"  # "
We use range function in above code and( end ="") is use to be on same line and you can use debug function to understand how it actually code runs.


Q.2 Write a code to Print following pattern in python ?
   
           ****
            ***
            **
             *

Solution=              

  for a in range (4):

           for j in range (4-a):
               print("*",end="" )

           print()

       As value of a is increasing after every iteration and (4 -a) is decreasing
       at first iteration value of a is zero  therefore
     ( 4 - a =4) and it will print " * "for 4 time and in next  iteration value of a is increase value of              (4-a)  will decrease  and in this  way this programme works

Q.3 Write a code to Print following pattern in python ?
-  $
   $$
   $$$
   $$$$
   $$$$$
  (This question is just opposite to Q.2 )

Solution =

for a in range (4):
     for j in range (a+1):
         print("$",end="" )
     print()

Q.4 Write a code to Print following pattern in python ?
-1 2 3 4
  2 3 4
  3 4
  4
Solution =
       
   

Please debug code in PyCharm to understand how this code actually works .

You can try a code for printing pattern 

Q.5 Write a code to Print following pattern in python ?(Assignment  question )

1

1 2

1 2 3 

1 2 3 4 

1 2 3 4 5   

I hope this article on printing patterns in python is helpful for u ....

                                                                   Thank u ...😊