MathGroup Archive 2001

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simple newbee questions

  • To: mathgroup at smc.vnet.net
  • Subject: [mg29518] simple newbee questions
  • From: "Richard" <wzn at jongnederland.nl>
  • Date: Sat, 23 Jun 2001 01:46:58 -0400 (EDT)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

As a newbee i am dealing with a few problems:

How can I calculate the mean of a matrix (n*m), an array works fine...

How can I select an area in a matix?

I'm using an 10x10x10 matrix (A). I want to display some of the matrices in
this matrix by using ListDensityPlot. For example: I want to display the
3rd,4th and 5th matrix.Can i do this in one line. I tried something like:
ListDensityPlot[ Table[Join[ A[[i]],{i,3,5} ]]]
Maybe it is possible to create three different plots in a single line.....

Thanx,
Richard




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