From: Steve Tuckner <STUCKNER@...>
Date: 2002-08-01T01:47:27+09:00
Subject: RE: matrix challange

For those of us who didn't know Matrix was built in, my first crack at it
was...

irb(main):011:0> a = [[1,2],[3,4],[5,6]]
[[1, 2], [3, 4], [5, 6]]

irb(main):012:0> c = []; a[0].size.times{c.push([])}; a.each{|b| bi = 0;
b.each
{|b1| c[bi].push(b1); bi += 1}}; c

[[1, 3, 5], [2, 4, 6]]

-----Original Message-----
From: Daniel Bretoi [mailto:lists@debonair.net]
Sent: Wednesday, July 31, 2002 11:24 AM
To: ruby-talk ML
Subject: matrix challange



Hi all,

	I'd like to see the various solutions for coming up with code to
	transpose a matrix. ie. make

	a = [[1,2],[1,3],[2,4]]

	look like

	aT = [[1,1,2],[2,3,4]]

	I haven't had time to do a solution myself, but I think it would be
	interesting to see how some of you guys would tackle it while I
	derive something.


--
"Then we typed the G, and the  system crashed"...