Sorry, new to ruby. Does ruby have a 2d array? If so, where could I
find the documentation?
TIA,
Michael Garriss
Sorry, new to ruby. Does ruby have a 2d array? If so, where could I
find the documentation?
One possibility is to put Arrays in Arrays. This way you can
create n-d Arrays. Here is a 2-d array.
irb(main):001:0> t=[[1,2,3],[4,5,6],[7,8,9]]
[[1, 2, 3], [4, 5, 6], [7, 8, 9]]
irb(main):002:0> t[0][1]
2
irb(main):003:0>
Maybe you also want to use at matrix, which by
definition is a 2d array.
Good luck,
-A.
···
Armin Roehrl, http://www.approximity.com
We manage risk
We cannot solve our problems with the same thinking we used when we created
them.
– Albert Einstein
I think Armin’s reference to ‘at matrix’ is a reference to matrix.rb,
which is a Matrix class that is part of the Ruby standard distribution.
matrix.rb is a port of smalltalk’s matrix class and includes finding
methods (rank, determinant, etc.) and transformation methods (such as
transposition).
Mark Slagell’s book, “Teach Yourself Ruby”, includes a chapter that
walks through creating an integer matrix with a number of useful
methods.
Also, a 2d array (a matrix) can be of any dimension in mathematical
terms, represented by a ‘table’ of ordered rows and columns.
···
On Wednesday, February 19, 2003, at 10:28 AM, Armin Roehrl wrote:
Sorry, new to ruby. Does ruby have a 2d array? If so, where could I
find the documentation?
One possibility is to put Arrays in Arrays. This way you can
create n-d Arrays. Here is a 2-d array.irb(main):001:0> t=[[1,2,3],[4,5,6],[7,8,9]]
[[1, 2, 3], [4, 5, 6], [7, 8, 9]]
irb(main):002:0> t[0][1]
2
irb(main):003:0>Maybe you also want to use at matrix, which by
definition is a 2d array.Good luck,
-A.Armin Roehrl, http://www.approximity.com