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MathGroup Archive 2005

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Re: Types in Mathematica, a practical example

  • To: mathgroup at smc.vnet.net
  • Subject: [mg62817] Re: Types in Mathematica, a practical example
  • From: i-faisal at wolfram.com
  • Date: Tue, 6 Dec 2005 00:03:13 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

I like to use Array when I want a variable to be treated as a matrix.


[[Expression:||| Array[x,{2,2}] |||]]

This is probably not what you want since the output is a nested list. This is not the same as declaring a variable as a matrix. But now, this approach works:

[[Expression:||| a={{1,2},{3,4}}|||]]

[[Expression:||| Array[x,{2,2}] - a /. x[k__]:>a[[k]] |||]]

Link to the forum page for this post:
http://www.mathematica-users.org/webMathematica/wiki/wiki.jsp?pageName=Special:Forum_ViewTopic&pid=6675#p6675
Posted through http://www.mathematica-users.org [[postId=6675]]



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