mult.rb

#!/usr/bin/env ruby

=begin Display the multiplication tables

My first computer program, written in Sept 1978, did the same
thing. I did not know about iteration using for or while and
so it was implemented using if and goto :-(. This was on an
ICL mainframe using MAXIMOP BASIC.

As you can see computer science, and I, have moved on since.

For many years this was the 1st computer program I wrote when
learning a new language.

Notice no support for command line arguements. That always used to
very difficult.
=end

LOWER=2  # lowest valued mult table to print
UPPER=12 # highers valued mult table to print

TABLESIZE=12 # How big will each multiplication table be

puts("\n\t\t\tMultiplication tables from #{LOWER} to #{UPPER}")

(LOWER..UPPER).each do |i|
  puts("\n#{i} Times Table")
  (1..TABLESIZE).each do |j|
    puts("\t#{j} X #{i} = #{j*i}")
  end
end

multTable

#!/usr/bin/env python3

""" Display the multiplication tables

My first computer program, written in Sept 1978, did the same
thing. I did not know about iteration using for or while and
so it was implemented using if and goto :-(. This was on an
ICL mainframe using MAXIMOP BASIC.

As you can see computer science, and I, have moved on since.

For many years this was the 1st computer program I wrote when
learning a new language.

Notice no support for command line arguements. That always used to
very difficult.
"""

lower=2  # lowest valued mult table to print
upper=12 # highers valued mult table to print

tableSize=12 # How big will each multiplication table be

def calcAndFormat(a,b):
    return "\t{} X {} = {}".format(a,b,a*b)

def formatTableHeader(a):
    return "\n{} Times Table".format(a)

def formtMainHeader(m,n):
    return "\n\t\t\tMultiplication tables from {} to {}".format(n,m)

# main

print(formtMainHeader(upper,lower))

for i in range(lower,upper+1):  # Range is exclusive at top so add one
    print(formatTableHeader(i))
    for j in range (1,tableSize+1):
        print(calcAndFormat(j,i))