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MathGroup Archive 2003

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Re: Matrix sizing in 2 dimensional input

  • To: mathgroup at
  • Subject: [mg39475] Re: Matrix sizing in 2 dimensional input
  • From: Friedrich Laher <mathefritz at>
  • Date: Mon, 17 Feb 2003 18:17:28 -0500 (EST)
  • References: <b2knbm$1g5$> <b2nrqq$6se$>
  • Sender: owner-wri-mathgroup at

Thank you again, and I think, you could point to the help, if an answer 
can be found there.

Allan Hayes schrieb:
> "Friedrich Laher" <mathefritz at> wrote in message
> news:b2knbm$1g5$1 at
>>is there no way to add/delete rows / collumns while entering data into a
>>2 dimensional matrix ( -"template" ) ?
>>The provided palletes only allow removing a column, removing a row does
>>not make a row vector of it.
> Friedrich,
> I recommend using the keys instead of the palette, see
> menu>Edit>ExpressionInput:
> Click to the left(right) of an entry; then Control+ "," add a column to the
> left (right)
> Click to the left of the first entry in a row; then Control+ "Return
> (Enter)" adds a row above
> Click anywhere else in a row; then Control+ "Return (Enter)" adds a row
> below
> Cutting copying and pasting work well, some experimentation is needed, but
> here are some points:
> Only runs of complete rows (columns) can be cut.
> An existing submatrix can be pasted over with a copy of one of the same size
> ( so, for example, to insert a row or column we have to create a new empty
> one as above).

Help > Mathematica Book >Goto 1.10.5 tells it all
may be the book will be changed some what,
I hope
Help > Master Index > Goto Matrices
  > "large light area below"
    The Mathematica Book
  input of

will be there in all editions of the book.

> --
> Allan
> ---------------------
> Allan Hayes
> Mathematica Training and Consulting
> Leicester UK
> hay at
> Voice: +44 (0)116 271 4198
> Fax: +44 (0)870 164 0565

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