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Re: Matrices with square brackets

  • To: mathgroup at
  • Subject: [mg102601] Re: [mg102578] Matrices with square brackets
  • From: George Woodrow III <georgevw3 at>
  • Date: Sun, 16 Aug 2009 06:41:33 -0400 (EDT)
  • References: <>

Use TraditionalForm[].

You can use // TraditionalForm as a postfix.

This will also render Sin[x] as sin(x) etc.

You can also set an option to show all output in Traditional form. The  
right bracket for these cells are shown with a dashed line (on my  
system at least).

I have seen some authors use TraditionalForm exclusively for output. I  
prefer to operate mostly of the time with StandardForm[], which is  
less ambiguous and which is easier to turn back into InputForm.


On Aug 15, 2009, at 5:33 AM, cca at wrote:

> According to MathWorld, "in the general literature, they [matrices]  
> are
> more commonly delimited using parentheses". Anyway, from time to  
> time I am
> asked about how to use matrices with square brackets in Mathematica.  
> It
> happened again some days ago. It is an embarassing situation. As  
> always, I
> sent a solution using $PreRead, $PrePrint and box manipulation. But  
> due to
> its complexity and unnaturalness for a beginner (or even to a "power
> user"), I now think that we should have a better, easier and more  
> robust
> way to do this (maybe as an option to MatrixForm).
> Carlos C=E9sar de Ara=FAjo
> Gregos & Troianos Educacional
> Belo Horizonte, MG, Brasil
> (31) 3283-1122

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