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Program 4: To print a pattern using for loop.

                            *
                            **

                            ***
                            ****

                     Program4.py                                                 Output
                  File  Edit  Format   Run    Options   Window    Help        *
                                                                              **
                  for i in range (1,5):
                                                                              ***
                      print("*"*i)
                                                                              ****





                 Program 5: To print multiplication table of number taken as input from user.


                     Program5.py
                  File  Edit  Format   Run   Options   Window    Help


                  #program to calculate multiplication table of a number
                  num= int(input('Enter a number: '))
                  for i in range (1, 11):
                      print (num, 'x',i,'=', num * i)




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

                     Output

                  Enter a number: 6
                  6 x 1 = 6
                  6 x 2 = 12
                  6 x 3 = 18
                  6 x 4 = 24
                  6 x 5 = 30
                  6 x 6 = 36
                  6 x 7 = 42
                  6 x 8 = 48
                  6 x 9 = 54
                  6 x 10 = 60




                 THE WHILE LOOP


                 The while loop executes a set of statements repeatedly, until the logical expression evaluates to false.
                 When the condition becomes false, the control comes out of the loop.





                                                                                                 Loops in Python   101
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