QuetionLinearize.mwWhen I use 'Linearize' command to linearize a equation, linm:=Linearize(...), it returns a state space or, a differential equation.

Then I want to extract the matrices of the state space, I type linm[a], but failed.

Is there any way to extract the matrices a,b,c, and d from the output? Note that this problem is different from the one which had been submitted.

If you construct the tensor product W of an m- and an n-dimensional vector space, U and V, then you can view the elements of W as m by n matrices (by picking a basis for U and V). The rank one matrices are the elements that can be written as the tensor product of (nonzero) vectors u in U and v in V; this corresponds to writing the matrix as u

My operating system is Mac OS X 10.6.4.   Lately Maple has been EXTREMELY tempermental in letting me "Save As a Worksheet"......I'm NOT talking about the "classic worksheet"

I try to save a file with a different name using "Save As A Worksheet" and Maple goes through the whole "Saving Worksheet" routine BUT NO NEW NAMED file is made!

This is very frustrating.....since it wasn't like this before.

Any ideas?

Jim

a convex  planar polygon with 9 vertexes such that every its point, which is not a vertex, does not belong to three diagonals of that polygon? This is of interest in connection with a certain combinatorical problem.

Hello everyone!

I am stuck after browsing my book and the help section for some time.

How can I find the value of a term like (with MAPLE syntax)

for x=1,2,..,5 ?

I'm looking for something like matlab's k=1:5; operation.

Creating sequences or arrays/vectors didn't help.

Thank you for your time if you read this.

I have recently upgraded to Maple 14, and I can no longer cut and paste syntax between components when I am editing their properties.  Is this normal, or do I have to adjust a setting?

Thanks,

Phil

example.7.mwI have a question for a long time.

For some dynamic systems, I want to extract the matrices or the transfer functions which maple had yielded as a table. The table contains matrices or transfer function.

I want to extract them for other purposes, for example,using transfer function to plot its step response.

Now, is there any way to do this without retyping them manually? Becouse...

Hello, 

I'd like to modify the form of this expression

To manage to have this form.

I have the function,

f:=5000/(1+99*exp((-0.8*t)));

and I would like to find it's inverse....how can I do this?

hi

I want to get points from plot for example I have a graph like y=x but I do not know its function I want to get just some points from that like [1,1] ,[2,2] and the others but I dont know how?

the second problem which I have is I cannot show points like [1,2,2] by plot,it shows just 2D not 3D points.

I mean x=1,y=2,z=2

plot shows just 2D like x=1,y=2

thanks for your attention.

I have an BW image, which i can read in with ImageTools. now i simply want a histogram of it. the plothistogram function works, but i am not sure that it does right, because the numbers in the plot seem far to big. so i am trying to use the histogram function but i am only able to plot a histogram for a single vector of my image. is there an easy way to use the histogram function for the entire array? as the next step, i would like to compute the variance of the histogram....

Hello,

Is there a Maple procedure that generates all possible partitions of a given set? For example, for the set {1,2,3} it should give {1,2,3}, {1,{2,3}}, {2,{1,3}}, {3,{1,2}}, {{1,2,3}}.

If not, how could I write one?

Thank you!

Consider the following simple calculation with Ore algebras:

DA:=Ore_algebra[skew_algebra](euler=[theta,z]):
Ore_algebra[skew_power](sqrt(3)*theta,2,DA);
Error, (in Ore_algebra:-skew_power) skew polynomial must be member of the algebra

The error is due to the square root which is not recognized as a member of the algebra even though it is only a number. There seems to be no option to remedy this issue. Is there another solution ?

I made a model in MapleSim(Fig 1).

Here is the custom element named 'FcF' among the model. Its equation is defined as Fig 2.

I analyses
the model in Maple, the part related with the equation of FcF is shown
as Fig 3.

 I want to solve  matr.mw  for matrix A and B. Although it has 7 equations and 7 unknown parameters, but  doesnt have any result

Reza²⁹⁶¹