Defined a demand function:

x:=(p,w)->w/(p[1]+p[2]+p[3])*Vector([p[2]/p[1],p[3]/p[2],p[1],p[3]])

The Slutsky Matrix is calculated as Dpx(p,w) + Dwx(p,w) x(p,w)^T with Dpx(p,w) = Jacobian for p1, p2, p3 and Dwx(p,w) is a column vector of the derivate of x1, x2, x3 in respect to w.

Step by step:

Dxp := Jacobian(x(p,w),[p[1],p[2],p[3]])

yields the correct Jacobian.

For Dwx I've tried several different methods, i.e.

Dwx := Jacobian(x(p,w),[w...

I am having a problem with variable assignment.

output 15 should be:

test :=[1]

[2]

[1 1]

At some point, the array test is being overwritten even though in my proceedure I use only local variables.

> I found this information and code quite useful. Now my set t1 changes slightly to include I and -I. I also set up conditionl statements to extract the right elements according to the criteria on the value of beta*Q as adviced previously. I then test this out using the values for (beta,Q) as (1,1), (-1,1),(0,1).

When beta*Q is positive (one in this case) I is not selected...

I'm looking for a quick way, preferrably without using any loops to 'map' a function using several vectors.

In the single vector case, this is quite easy, but with multiple vectors, I'm not sure if map is the correct command to use.

For example:

u:=<1,1,1>;
v:=<2,3,4>;

f:=(x,y)->ln(x-y);

What I'd like to do is create a new vector from the map of the function onto both vectors,...

Dear All,

I'm a beginner who is learning Finite Field under the help of Maple. I'm wondering is there a command to compute the minimal polynomials for the members of a finite field?

For instance, for GF(16) realized by the polynomial a^4 = a + 1,we know that for a's minimal polynomial is x^4 + x + 1, a^3's minimal polynomial is x^4 + x^3 + x^2 + x + 1. In Maple, how do I reproduce such result?

Thank you very much for your help,

Best,

Kelvin

Hi! Normally recursively defined functions work well, but if I use a sum inside, this happens:

> y:=n->sum(y(k),k=0..n-1);

                                   n - 1
                    ...

I need to send a Maple worksheet (.mw) to someone who is not a Maple user,doesn't have Maple installed.So what is the simplest possible solution now?How can I convert this into a pdf/doc/ps/eps  file so that any document viewer can open it?

Hi,

I'm having some troubles in solving an equation which has the following form:

S. Inv(R). T = L

whereas S is a [nx1] row vector, T is a [1xn] colomn vector, R is a [nxn]Matrix and L is a scalar.

The problem is that R is a quite complicated function of a single variable for which i want to solve this system. Thus the analytical matrix inversion doesnt work.

Do you have any suggestions how i can solve this in a numerical way?...

Hi, Can Maples Logic package solve these problems?

How can they be formulated and solved in Maple? rgds

Let's say that the following arguments are true: Some gatekeepers are warriors. Some warriors are cowards. Therefore, we can conclude that some gatekeepers must be cowards. Is this conclusion true or false? answer: F

 Let's say that the following arguments are true: All Parkers are Franks. All Franks are smart. Therefore, we can conclude...

Hi, I would like to fit my data with a physical model. Unfortunately, I have the model in the form of an ODE which can be solved numerically only. So made a procedure output as follows:

I solve one task. And as a result I receive a matrix and export it to a textfile. Then I receive another matrix and try to export it to the same textfile. Another words I need to add a last matrix to previous one but when I use exportmatrix command the last matrix overwrites previous one. What can do?

Hi, dear mapleprimes. These days I'm preparing my thesis. I use maple to generate some figures, and save them as .jpg. These figures are very clear when I insert them into a word document (my thesis). But after I print the document, the figures looks unclear. It seems that they are cuted from other papers, but actually they are not.

I think it is important to print clear figures, I want the figures can be printed clearly...

Dear guys

I have a set of ODEs but when I solve it maple shows this massage:

"Error, (in dsolve/numeric/SC/firststep) unable to evaluate the partial derivatives of f(x,y) for stiff solution"

If I neglect the option "stiff=true", it works but then when I want to plot something maple says:

"Warning, cannot evaluate the solution past the initial point, problem may be complex, initially singular or improperly set up"

and only shows a coordinate...

Good afternoon

I don´t know if a principal worksheet in maple can call other secundary worksheets.

Please help me. I don´t know the code, or function

Hello experts,

I have function that I need to plot it  in hisogram:

f3 := (n) -> (2*n)!*(lambda)^n/(((n)!^2)*2^(2*n)*(lambda+1)^(n+0.5));

n=0..20 and lambda:=10

thanks.