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MathGroup Archive 1999

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RE: Automatic Display in MatrixForm

  • To: mathgroup at smc.vnet.net
  • Subject: [mg19539] RE: Automatic Display in MatrixForm
  • From: Colin Rose <colin at tri.org.au>
  • Date: Tue, 31 Aug 1999 00:52:27 -0400
  • References: <E1168E31432DD211AF990000F806EFD801FB51B8@nems04.nawcad.navy.mil>
  • Sender: owner-wri-mathgroup at wolfram.com

Greetings

A few weeks ago, there was much excitement here when
it was shown that one can get all the advantages of
MatrixForm output, without the disadavantages, by using:


MakeBoxes[m_?(Function[t,MatrixQ[Unevaluated[t]]&&(t=!={{}}),HoldAll]),
  StandardForm] :=
   RowBox[{"(", GridBox[Map[Function[t,MakeBoxes[t,StandardForm],HoldAll],
           Unevaluated[m],{2}]],")"}]

____

Now suppose:

  1) We switch the above ON.
  2) Then, how do we switch it off for a particular function's ouptut.


That is, if MyFunc[x] returns a matrix, which we want formatted
as a List (and not in "Fancy Matrix" form), how can we switch
it off LOCALLY for this function's output only,
and without converting back to InputForm ?


Any ideas ? Anyone ?

Cheers

Colin
 
Colin Rose
tr(I)    -  Theoretical Research Institute
__________________________________________
colin at tri.org.au    http://www.tri.org.au/


 






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