You might try doing it in another CAS and pass the output back to Maple to process. More info here. From the main page: Matrix computations * Implementation of the sparse Gauss-Bareiss method for elimination (matrix triangularization) in arbitrary integral domains * Computation of the determinant of a square matrix, for integer matrices a modular algorithm is used, for other domains the Gauss-Bareiss method is used. Regards, Georgios Kokovidis Dräger Medical

The line below creates the spreadsheet. >beta_N(); Highlight the A column, hold down the shift key, and then highlight the B column. >GetValuesMatrix(Eq15_16); This will return: RTABLE(158096152,anything,Matrix,rectangular,Fortran_order,[],2,1 .. 100,1 .. 2) Right click on the output above, go to Plots - Plot Builder and you should be able to plot this as a 2-D line. Regards, Georgios Kokovidis Dräger Medical

The short answer is yes. The long answer is yes as well. The key to your question is the word "explore". Maple will not think for you, but it is an excellent complementary tool to investigate, visualize and do "what if" type of analysis. You can use it as a basic calculator, although that is overkill, but after that if will serve you well. If you do buy it, make sure to work through the Introductory guides. Any questions or comments, feel free to post them here and most of the time you will get an answer. Regards, Georgios Kokovidis Dräger Medical

It's the guide. It does not work for me either. WinXP with Adobe Acrobat 7.0 Professional. Regards, Georgios Kokovidis Dräger Medical

1: Ask a new question in a new thread. This one is not the place to do that. 2: What are your initial conditions? The plot will depend on them. 3: Look at the help files for odeplot, diff and dsolve to get you started. >restart: >ode:=diff(y(x), x$2)=(1/sqrt(x) + exp(2*x)); ode := diff(y(x),`$`(x,2)) = 1/(x^(1/2))+exp(2*x) >ics := y(0)=1, D(y)(0)=1; >p:=dsolve({ode,ics}); p := y(x) = 4/3*x^(3/2)+1/4*exp(2*x)+1/2*x+3/4 >with(plots): >plot(rhs(p),x=0..2); Regards, Georgios Kokovidis Dräger Medical

My mistake. Maple does not recognize e^x. You have to enter it as: exp(x). >ode:=diff(y(x),x)=exp(x)/(y(x)+2); >dsolve(ode); y(x) = -2+(4+2*exp(x)+2*_C1)^(1/2) y(x) = -2-(4+2*exp(x)+2*_C1)^(1/2) Regards, Georgios Kokovidis Dräger Medical

Did you mean to do something like this: >restart: >ode:=diff(y(x),x)=e^x/(y(x)+2); ode := diff(y(x),x) = e^x/(y(x)+2) >dsolve(ode); y(x) = (-2*ln(e)+(4*ln(e)^2+2*e^x*ln(e)+2*_C1*ln(e)^2)^(1/2))/ln(e) y(x) = -(2*ln(e)+(4*ln(e)^2+2*e^x*ln(e)+2*_C1*ln(e)^2)^(1/2))/ln(e) I'm assuming that you are using the Standard Interface, so if you enter the ode as above in ODE Analyzer Assistant and "Solve Symbolically", you should get the same answer. Regards, Georgios Kokovidis Dräger Medical

This is not a bug. Look at the help pages for the "numer" and "denom" functions, and you will see that these are called after the "normal" function is applied. >f:=3/((1-x)^2*(2-x)); f := 3/(1-x)^2/(2-x) >normal(f); -3/(-1+x)^2/(-2+x) Regards, Georgios Kokovidis Dräger Medical

I could not get your process to work as posted. There is a typo in your code. From a previous posting by Alec here, the following code will do what you want: >restart: >f:=n->select(isprime,[$1..n]); >a:=f(20); a := [2, 3, 5, 7, 11, 13, 17, 19] >add(i,i=a); 77 If the number inside the parentheses is large, you might want to suppress the output on the screen. Just replace the semicolon with a colon. >a:=f(20); will be >a:=f(20): instead. Regards, Georgios Kokovidis Dräger Medical

When I downloaded your worksheet, I did not get the error "Error, (in convert/matrix) invalid expression for eval" that you got. I noticed to convert the Matrix to columns for the scatterplot, I had to use the "col" command from the "linalg" package. Check out the help pages for the LinearAlgebra and linalg packages. There are commands that allow you to add to vectors together. I attached a worksheet that seems to plot using the scatterplot command. There are other ways to do this as well, but I'll leave it at alone for now. View 221_matrix_scatterplot.mw on MapleNet or Download 221_matrix_scatterplot.mw
View file details Regards, Georgios Kokovidis Dräger Medical

You can right click on the Matrix structure and see what options are available to you. Plotting is one of them. Maple has a limit as to how much data it will display. You can override this. At this point, don't bother. At the beginning of your worksheet, type the following. This will allow you to plot later. >with(Statistics): To view your elements, type the following. >convert(A,matrix); This should show you your 100x2 data on the screen. You can extract each of the columns, assign to a name and them plot. >x:=col(A,1..1); >y:=col(A,2..2); >ScatterPlot(x,y); The above is to get you started. Maple is a complicated beast, and I mean both of these words (complicated+beast) literally. It will take time to master, but it is worth it. Hang in there. Keep reading the manuals, help pages within the Maple environment and this user group. Regards, Georgios Kokovidis Dräger Medical

Something like this? >restart: >C:={1,2,3,4,5,6,7,8,9,10,20,50,100}; C := {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 50, 100} >B:={3,5,7,9,50}; B := {3, 5, 7, 9, 50} >C minus B; {1, 2, 4, 6, 8, 10, 20, 100} Regards, Georgios Kokovidis Dräger Medical

Take a look at the help page for the RealDomain package. >?RealDomain You can load the package and use it as follows: >with(RealDomain); There are examples included. Once the package is loaded, you can access each of the functions using the :- prefix. Regards, Georgios Kokovidis Dräger Medical

Example worksheet here. ProbabilityDensityFunction is for continuous distributions while ProbabilityFunction is for discrete distributions. The older stats package is useful as well. >?ProbabilityFunction >?ProbabilityDensityFunction >?stats,distributions Regards, Georgios Kokovidis Dräger Medical

Look at the help files for: StringTools[FormatTime] and StringTools[ParseTime] >?StringTools[FormatTime] Regards, Georgios Kokovidis Dräger Medical