Re: Matrix sizing in 2 dimensional input

*To*: mathgroup at smc.vnet.net*Subject*: [mg39475] Re: Matrix sizing in 2 dimensional input*From*: Friedrich Laher <mathefritz at schmieder-laher.de>*Date*: Mon, 17 Feb 2003 18:17:28 -0500 (EST)*References*: <b2knbm$1g5$1@smc.vnet.net> <b2nrqq$6se$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Thank you again, and I think, you could point to the help, if an answer can be found there. F. Allan Hayes schrieb: > "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). Help > Mathematica Book >Goto 1.10.5 tells it all but may be the book will be changed some what, then I hope Help > Master Index > Goto Matrices > "large light area below" The Mathematica Book Matrices input of will be there in all editions of the book. > > -- > 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 > > >