Is this homework? J. Tarr

Please see ?Fit and ?examples,Optimization. The example worksheet contains an example on curve fitting an arbitrary function to a data set. Hope this helps, J. Tarr later edit. Sorry Joe, I didn't mean to post on top of yours which appeared just as mine went out.

It is not clear what is giving you a problem. You should be able to display matrices of complex numbers provided they are not too large. Here's a simple example: restart; with(LinearAlgebra): M := <||>; If the elements are rather long, Maple will display a placeholder. You may be able to get Maple to display the matrix by using interface(displayprecision=3), or some similarly small number. But if the matrix dimension is large, you could try using interface(rtablesize=infinity). This should cause Maple to display the matrix, but it will not be nicely formatted - it will be lists of lists. Hope this helps, J. Tarr

Are referring to Michael Carter's package at the Application Center? If so, you should be able to modify it, though you will want to contact him and discuss the issue. If you are thinking of using the package for commercial work, you will need to discuss this with him too. J. Tarr

Please see ?Student[LinearAlgebra][GaussianElimination] Hope this helps, J. Tarr

Short answer - in Maple 10, yes. Please do ?student to see all the commands for the (old) student package, and ?Student for the newer Student package. (The seriously lazy will notice that doing ?student brings up all the commands for both packages in the search results!) Hope this helps, J. Tarr

Try this Place the cursor at the end of Examining (5), let's substitute ω(t) ≡ θ', press Enter, then press backspace and voila! the annoying (7) becomes the vanishing (7)! J. Tarr

I would agree with GeorgeJ if Maple fully covered most branches of maths and its developers had tackled all the bugs lurking in the undergrowth. But that's all in the future. In the meantime, the developers should be concentrating on the maths and the bugs, not the presentation ware that already exists elsewhere in LaTex, or even Acrobat. One could even imagine porting Maple into Word. I accept that it might be nice to present papers that allowed the reader to see the calcs happening, but that is seldom needed. Moreover that sort of detail usually gets stuck in an annexe to the main paper. Maplesoft hasn't got the luxury that Lotus and Microsoft had with spreadsheets - a vast commercial market. It needs to stick to what it does best for its relatively restricted market: maths for education and research. J. Tarr

You could do this: restart; (1/2)*beta + (sqrt(5)/2)*beta; collect(%,beta); Hope this helps, J. Tarr later edit. Apologies to dharr, your post had not appeared on MaplePrimes when I posted, otherwise I would have refrained.

Many of us would agree with you that document mode is only useful for presenting the finished worksheet. Some of us go further and believe that it is a waste of time - Maplesoft's and our computers' time. IMHO it would be much, much better if Maplesoft ditched document mode and produced a really good interface to LaTex. That produces professional looking documents, document mode... J. Tarr

Steve, You could do something like this: restart; with(LinearAlgebra): A := <||>; Map(tanh,A); Please see ?Map. Hope this helps, J. Tarr

Jinny, Please see ?dverk78 and ?dsolve[Error_Control]. Why did you choose dverk78? Hope this helps, J. Tarr

Einar, It's better to use LinearAlgebra[Eigenvectors] and easier to convert its outputs into a form suitable for exporting to Excel. Please see ?Eigenvectors. J. Tarr

Elinor, You are solving a system of ODEs that does not include Tw directly: please see ?odeplot. Hope this helps, J. Tarr

You could do something like this: restart; with(VectorCalculus): sph := (x-7)^2+(y-8)^2+(z-9)^2-r^2; eval(DirectionalDiff( sph , <1,2,3>, [x,y,z] ), {x=4,y=5,z=6}); or a bit more flexibly like this: restart; f := (V1,V2,V3,X,Y,Z)->eval(VectorCalculus:-DirectionalDiff(g, ,[x, y, z] ),{i=V1,j=V2,k=V3,x=X,y=Y,z=Z}): g := (x-7)^2+(y-8)^2+(z-9)^2-r^2; ans := f(1,2,3,4,5,6); Hope this helps, J. Tarr