Hello,

This is my beginnig with maple. This program seems to me very cool, and handy in my study. But I have problem. I want to create a document of project where are simple things but I don't how force maple to show counting.

In maple I do:

x:=5

y:=8

x + y = 13

But I want to show how it was counting I want sth likde that:

x + y = 5 + 8=13

I was looking how to do it but I can't find anywhere.

Please could anybody help?

In the chemical and oil & gas industries it is quite common to describe a gas flow in units of standard volume (e.g. normal cubic meters aka NM3 or standard cubic feed aka SCF).

This is really equivalent to a molar flow rather than a volume flow since the volumes are calculated based on the ideal gas law assuming the flow is at standard conditions (1 atm and 0C for NM3 and 1 atm and 60F for SCF).

I would like to add NM3 and SCF to the SI and FPS unit systems.

There is a difference between a variable with an index and a variable name with an index in "2D Math"-Mode.

The variables look similar.

Here an example, what I type and what I get.

a (SHIFT + _) 1:=2

a (SHIFT + CTRL _) 2:=3

a (SHIFT + _) 1 * a (SHIFT + _) 2

a (SHIFT + CTRL _) 1 * a (SHIFT + CTRL _) 2

a (SHIFT + _) 1 * a (SHIFT + CTRL _) 2

And this is, what I get.

I want to determine the domain of definition for an expression using a command,

but i can't find it in the help,

can someone help me,

thanks in advance.

Hi!

I enclosed solution of 1D heat transfer problem which was solved by MAPLE and MATHCAD 15.
I assume exacly the same data, IC and BC.
Results are different:

Maple - wrong!

Mathcad - right!

I confirmed solution with FEA system.

Could you advice me!

Mathcad_-_PDE_rozwia.pdf

I am sorry, this question is not strictly related to Maple (but could be in some sense). If I am solving some simple system of ordinary differential equations I can obtain both analytical (symbolic) and numerical solution. Thanks to condition numbers I am able to quantify the error caused by rounding (in the analytical solution). Numerical methods make approximations and errors arising from them can be also computed (and in Maple can be controlled by abserr, relerr).

Eq[1] := .1*(diff(r(rho), rho))^5*r(rho)^4*sin(theta(rho))+(diff(r(rho), rho))^3*cos(theta(rho))^2*sin(theta(rho))*(r(rho)^4-.1*rho^4)+(diff(r(rho), rho))*rho^4*cos(theta(rho))^4*sin(theta(rho))+(r(rho)^2*rho^2*(diff(r(rho), rho))^4*cos(theta(rho))-rho^4*cos(theta(rho))^5+.1*r(rho)^4*(diff(r(rho), rho))^4-.1*r(rho)^2*rho^2*cos(theta(rho))^5)*(diff(theta(rho), rho))*r(rho)

Eq[2] := p*(diff(r(rho), rho))*cos(theta(rho))^3*rho-(diff(r(rho), rho))^4*r(rho...

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.