Re: Grid
- To: mathgroup at smc.vnet.net
- Subject: [mg80947] Re: Grid
- From: Szabolcs <szhorvat at gmail.com>
- Date: Thu, 6 Sep 2007 05:24:22 -0400 (EDT)
- Organization: University of Bergen
- References: <fblk36$qic$1@smc.vnet.net>
John wrote:
> I want to create a 9x9 grid that has specified positive integers,
> fewer than 81, entered in specified cells. I used SparseArray to enter
> the specified numbers in the specified cells, but it put a 0 in every
> unspecified cell.How do I convert the zeros to blanks?
If you are trying to format formulae (and not enter valid Mathematica
expressions), try using CTRL-<Enter> and CTRL-, and replace some of the
boxes with spaces.
If you wish to generate the formula programmatically with SparseArray[],
then do something like
sm = SparseArray[{i_, i_} -> i, {10, 10}];
Normal[sm] /. 0 -> "" // MatrixForm
(Note the space between /. and 0)
Szabolcs