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MathGroup Archive 2006

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Applying rules to SparseArray

  • To: mathgroup at smc.vnet.net
  • Subject: [mg66360] Applying rules to SparseArray
  • From: "CoolGenie" <CGenie at gmail.com>
  • Date: Thu, 11 May 2006 02:13:56 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi!
Let's say I've a matrix like this one:
m=SparseArray[ {{1, 1} -> 1, {1, 2} ->2, {3, 2} -> x}, {3, 3} ];
which looks like this in MatrixForm:
1 2 0
0 0 0
0 x 0
where 'x' is a variable coefficient. Is there any way to apply a rule
{x->1} to this array? ( m/.{x->1} doesn't work )

Thanks in advance


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