MathGroup Archive 2007

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  • To: mathgroup at
  • Subject: [mg74122] Weird Print Result
  • From: Bruce Colletti <vze269bv at>
  • Date: Mon, 12 Mar 2007 04:33:00 -0500 (EST)

Re Mathematica 5.2 under WinXP.

The code below creates the correct output, except for a strange concluding "4 Null."

What does this weird last line of output mean (list length?), why does it print, and how can it be suppressed?



n = 2;
T = Array[p, {n, n}];
X0 = Array[x, {n}];
X = (Expand /@ (X0.MatrixPower[T, 2]));
Print /@ X[[1]]

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