here is the matrix,for example, result:=Matrix(2, 2, {(1, 1) = 4*c-4, (1, 2) = -2*c+3, (2, 1) = -2*c+3, (2, 2) = 4*c-15/4}) for what region of c, this matrix is positive definite? I typed the following in Maple, > IsDefinite(result); / 2 \ 0 <>

Hey all just a quick question. How do you make a 3d house using the 3dplot. thanks

Suppose I have 2 Matrices, say each is 3 by 3. Is there any way I can check for the equality of all corresponding elements of the matrices without resorting to a for loop or something like that?

In diagaonalizing a Hermitian matrix, the eigenvectors come out un-normalized, and as a result, when performing a similarity transformation on the original (Hamiltonian) matrix, the diagonal elements come out proportional to the true values, not the values themselves. I can't find out how to simply normalize the eigenvectors so that they can be made into the appropriate matrix (and its transpose complex-conjugate). There's got to be a simple way, but I can't seem to find it. Can someone point the way? Thanks Carl David

Hey I am trying to do on maple to make a 3d ball which bounces up and down. Any help would be greatfully apprecaited.

Hello, Is there a mathmatical formula for horn 3D plot simulation. I tried the following but no luck so far. http://en.wikipedia.org/wiki/Cylindrical_coordinates http://mathworld.wolfram.com/Cone.html How do I convet a cone formula to a Horn formula. Where I can control the shape and size of the horn using parameters. I any help would be appreciated. Regards Raj

Hello, I need to create a picture in eps format to use it in LaTex Document. I use plotsetup to create it but the output is not worked corretly. In Maple 8 it workes. plotsetup(ps,plotoutput=`plot.ps`,plotoptions=`portrait,noborder`); and then I use some plot command. I am not able to compile the maple output in LaTexPdf. I try to open it in CorelDraw and it is opened, but I am not able to work with it like I am able with Maple 8 output. Why? Is it different format of eps? Could you help me please? How could I create eps file to use in LaTeX? Thank you very much. Vladimir

I am trying to integrate this equation numerically, but Maple just returns it every time. Any suggestions on how to tackle this kind of problem? I want to treat mu and T as const. I made the worksheet a public file on my account called Numerical Integration. PLease give it a try if you have the time and let me know what you come up with. You can also make your own worksheet, the integral is as follows. int(sqrt(x)/(exp((x-mu)/T)+1), x = 0 .. infinity) Thanks, Good Luck

Hello, i'm newbie here and spanish... Someone can help my, i want an procedure/function that you put an array and it will give you the rang/rank but not using the function implemented un maple... I'm using MAPLE 10 THX

How can the number of digits found in computed values of exponents be controlled? Here is my problem: I am appling a power fit to statistical data using the following command power:=PowerFit(X,Y,x); and I get the following output: 4.686027976 x^(0.413637849985206863) I would like to have these coefficients truncated to say 3 digits so that the expression is manageable when I insert the expression into a plot title. I have tried: power:=evalf[3](PowerFit(X,Y,x)); which produces 4.69 x^(0.413637849985206863)

How is a legend displayed using scatterplot? For example the command plot:=scatterplot(X,Y,legend="DATA"); will not work. It produces: Error, unexpected object: >LEGEND("DATA")

A little while ago on another thread I asked about putting hats on variables and Georgious pointed me in the direction of a most helpful thread. I found that there was more that 1 way to do it. One of the ways involved this syntax `#mover(mi(θ),mo("∧"))` It works, but I haven't been able to find any documentation mi, mo or mover. I sure would appreciate it if someone could help me understand this syntax. Also, what if I want to out a dot above a hat on a variable ? Thanks

When I input 3*(x+y) the outpupt is 3x + 3y. Is there any way to go the other direction - that is, perform some operation on 3x + 3y that will yield the output 3*(x+y) ?

implement a program for a matrix a a vector x and numbers eps>0, omega e(0,2) approximates the solution of the system Ax=b by relaxation with parameter omega and accuracy eps the program should stop when last iterations x[i-1],x[i] and x[i+1] satisfy norm(x[i+1]-x[i]> norm(x[]-x[i-1]

I used to do this, but it seems I have forgotten how...

> P1 := plot(sin(x),x=-Pi..Pi);

> with(plots):display([P1]);

> plotsetup(ps,plotoutput=`aa.ps`,plotoptions=`portrait,noborder`);