Create two-dimensional arrays and access sub-arrays in Ruby

Question

I wonder if there\'s a possibility to create a two dimensional array and to quickly access any horizontal or vertical sub array in it?

I believe we can access a hor

Answer 1

You didn't state your actual goal, but maybe this can help:

require 'matrix'  # bundled with Ruby
m = Matrix[
 [1, 2, 3],
 [4, 5, 6]
]

m.column(0) # ==> Vector[1, 4]

(and Vectors acts like arrays)

or, using a similar notation as you desire:

m.minor(0..1, 2..2) # => Matrix[[3], [6]]