Re: Matrix sizing in 2 dimensional input
- To: mathgroup at smc.vnet.net
- Subject: [mg39452] Re: Matrix sizing in 2 dimensional input
- From: "Allan Hayes" <hay at haystack.demon.co.uk>
- Date: Sun, 16 Feb 2003 06:13:53 -0500 (EST)
- References: <b2knbm$1g5$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
"Friedrich Laher" <mathefritz at schmieder-laher.de> wrote in message news:b2knbm$1g5$1 at smc.vnet.net... > 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). -- Allan --------------------- Allan Hayes Mathematica Training and Consulting Leicester UK hay at haystack.demon.co.uk Voice: +44 (0)116 271 4198 Fax: +44 (0)870 164 0565