From: Dave Thomas <Dave@...>
Date: 2001-05-01T12:42:44+09:00
Subject: [ruby-talk:14477] Re: Large Matrix

"rashworth" <rashworth@mail.warpnet.net> writes:

> The map works fine, but I am not able to redefine
> map[2][2] = "a"  ? and then print map

 my_array = (1..50).map { (1..50).map { '+' }  }

 my_array[2][2] = "a"

 puts my_array.collect {|row| row.join }

#=>

  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ++a+++++++++++++++++++++++++++++++++++++++++++++++
  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ++++++++++++++++++++++++++++++++++++++++++++++++++
  ... etc