Challenge by Jack Boffa, HHS '14
Write and submit a Python program that prints a multiplication table. The user must be asked to give the width and height of the table before it is printed.
It may be simpler to start by printing a grid consisting of Xs rather than numbers. The grid program output could be something like this:
Width of multiplication table: 10
Height of multiplication table: 8
X X X X X X X X X X
X X X X X X X X X X
X X X X X X X X X X
X X X X X X X X X X
X X X X X X X X X X
X X X X X X X X X X
X X X X X X X X X X
X X X X X X X X X X
Once you've made the grid, expand the program to print real numbers. To make the table look nice, you should right-justify the numbers when you print them. This can be done using the format() function as such:
print("The number is: {0:>3}".format(1)) # Prints "The number is: 1"
print("The number is: {0:>3}".format(12)) # Prints "The number is: 12"
print("The number is: {0:>3}".format(123)) # Prints "The number is: 123"The final multiplication table should look like this:
Width of multiplication table: 10
Height of multiplication table: 8
1 2 3 4 5 6 7 8 9 10
2 4 6 8 10 12 14 16 18 20
3 6 9 12 15 18 21 24 27 30
4 8 12 16 20 24 28 32 36 40
5 10 15 20 25 30 35 40 45 50
6 12 18 24 30 36 42 48 54 60
7 14 21 28 35 42 49 56 63 70
8 16 24 32 40 48 56 64 72 80