Re: Queries: notebook, matrices
- To: mathgroup at smc.vnet.net
- Subject: [mg27028] Re: Queries: notebook, matrices
- From: "Allan Hayes" <hay at haystack.demon.co.uk>
- Date: Tue, 30 Jan 2001 23:22:44 -0500 (EST)
- References: <9562tq$6q@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
"M. Damerell" <uhah208 at rhbnc.ac.uk> wrote in message news:9562tq$6q at smc.vnet.net... ---- Snip ------- > 1. I do a lot of calculation in a notebook, save it, > then when I restart Math & open the file I have to > recalculate each item before I can resume where I > left off. Is there any way to tell Math to recalculate > everything when the file is reopened? There is a menu command: Kernel > Evaluation > Evaluate Notebook If your calculations take a lot of time then you might consider using Save to save definitions in a file > 2. I enter a matrix as (say) A={{1,2,3},{4,5,6} etc > and it displays in that form. Is there any way to make > Math display matrices as matrices? I know you can do > > B=A.A//MatrixForm > > this looks right but Math doesnt know this is a matrix. > So I would like matrices to be held internally in list > form but displayed in matrix form. Use (B=A)//MatrixForm or Set menu > Default Output Format Type > TraditionalForm or convert appropriate output cells to TraditionalForm using menu > Cell > Convert To > TraditionalForm > > 3. and finally, is there any way to export the matrix > into Excel? > I guess Mathematica Link for Excel: http://www.wolfram.com/products/applications/excel_link/ or Database Access Kit http://www.wolfram.com/products/applications/dbak/ -- Allan --------------------- Allan Hayes Mathematica Training and Consulting Leicester UK www.haystack.demon.co.uk hay at haystack.demon.co.uk Voice: +44 (0)116 271 4198 Fax: +44 (0)870 164 0565