Multiplication tables

# title: Multiplication tables
# source: https://rosettacode.org/wiki/Multiplication_tables
# category: Rosetta Code
# difficulty: Intro
# summary: Build a small multiplication table as nested arrays.
# tags: popular, math, tables, loops
# vibe: 0.2

def multiplication_table(limit)
  rows = []
  row = 1

  while row <= limit
    current = []
    column = 1
    while column <= limit
      current = current + [row * column]
      column = column + 1
    end
    rows = rows + [current]
    row = row + 1
  end

  rows
end

def run
  multiplication_table(6)
end