For the simulation of a microcontroller I am looking for discrete components like AD and DA converters, filters, differentiators, integrators.

The plant to be controlled is built with components from the MapleSim 2022 component library.

If there are no libraries that are compatible with the current version of MapelSim, I wonder if there is something that could be customized.

Any insights on the subject are welcome.

I have seen several examples of using Maple to numerically solve a PDE, but I'm looking for a "symbolic" method.

If I type seq(i,i=1..1000) <enter> I get a large output.

Then when I type

for i from 1 to 5 do
  i;
end do;

It takes Maple 8 seconds to complete the job.  Is this normal when using Windows 7?

Hello,

I am having problems printing Maple Flow documents. I have set up both a header and a footer. In the Print Preview mode, everything is fine. When I try to print to a PDF file, the header loses its format and the footer does not print at all. Printing to a printer looks the same. What settings must be selected so that the printout can be passed on as a well-formatted document?

Many thanks in advance.

Did Maple just end the links to older maple manuals? 

I can't locate the link to find older maple manuals on the maplesoft website.  Did it get moved?  I can't find it.  Does anyone have a link?

Hello Everybody

My name is Emmanuel and i live in Paris, France. I work in insurance and i am an actuary. 

I am a new maple user because i wanted to have some fun redoing some mathematics. (I studied mathematic 30 years ago).

I would like to develop an animation with epicyles to draw something. 

(there is a famous one on youtube with homer simpson)

My idea is to embed an image with a simple drawing, get the coordonate from the points and apply a complex fourier transfor to get the parameters and make an animation.

I found the way to make the animation, to emben the image. .But i cant find how to get a maxtrix or a vector (i dont know what is the best ) of the coordinate of the point of the drawing. Does any of you have an idea to do it ? 

Thanks a lot

with(Optimization):
expr_optimize := fSW__Ratio_Tol[XU5]*f_ratio__SpreadSpectrum[XU5]*(R34^2*k1__RT[XU5] + R34*k2__RT[XU5] + k3__RT[XU5])/R34^2;
seqUnknownRanges := R34 = 5.640*10^4*Unit('Omega') .. 6.160*10^4*Unit('Omega'), k1__RT[XU5] = 4.054*10^4*Unit(1/('s')) .. 4.054*10^4*Unit(1/('s')), k2__RT[XU5] = 1.593*10^11*Unit(1/('F')) .. 1.593*10^11*Unit(1/('F')), k3__RT[XU5] = -2.645*10^15*Unit('m'^4*'kg'^2/('s'^7*'A'^4)) .. -2.645*10^15*Unit('m'^4*'kg'^2/('s'^7*'A'^4)), fSW__Ratio_Tol[XU5] = 0.950 .. 1.050, f_ratio__SpreadSpectrum[XU5] = 1 .. 1.250;
NLPSolve(expr_optimize, seqUnknownRanges, 'useunits', 'method' = 'modifiednewton', 'optimalitytolerance' = 0.101);

NLPSolve returns this message "Warning, convergence is not assured; examine Hessian values, or consider raising tolerance"

How can I capture this message in a procedure and take appropriate action?

Is there a way to see the Maple implementation of Runge Kutta 4th order method in dsolve?

By searching I found I can print the implementation of a procedure as follows

interface(verboseproc = 2)

print(dsolve)

But I'd like specifically to see the code for the method RK45.

It is easy to simplify the following expression (to 4), but maple's ceil function does not seem to be interested in simplifying it.

where n is greater than or equal to 4. 

simplify(ceil((3*n-8)/(n-3))) assuming n>=4, n::positive # As-is output

We have to rewrite "(3*n-8)/(n-3)" in this form "3 + 1/(n - 3)" to recognize.

simplify(ceil(3 + 1/(n - 3))) assuming  n>=4, n::positive

4

• My first question is: How to transform (3*n-8)/(n-3) into 3 + 1/(n - 3) by maple?
• My second question: Can we see the steps of execution of the simplification involving  ceil)?

I am trying to generate c code for a LinearAlgebra test problem using Maple:

But the output cannot be used due to the warning:

Warning, the function names {KroneckerProduct} are not recognized in the target language

The proposed code looks like:

How to resolve of this ODE System Error, the proble is "Error, (in dsolve/numeric/process_input) input system must be an ODE system, got independent variables {t, [S, E, In, R]}

Download TKO.mw

I need a combobox with two columns but I don't think it is possible.  I want to display a list of acids with their names and dissociation constants.

Don't know if this is a bug or just another proof of my incompetence, but I am struggling in storing values between sessions using DataTable components.

The problem seems to me to be related to nested tables, somehow.

I've made a little example showing the problem.

Quickly explained, you should do 2 runs to see the problem. The first run creates a matrix and a table, and stores the values in a DataTable cell. You shouldn't see any problems there.

Save the document and close it.

Then open the file once again, but just run the 2 commands in chapter 4. You should then see an error message.

My goal is to be able to save a nested variables with its values in a Datatable between sessions. The main variable and many of them below are tables, the last in the branch often string values or numbers with units.

StoreBetweenSessions.mw

How should I change w1 to w2 only in exponential? For example, let

x := omega1*exp(omega1*t1*I) + omega1/exp(omega1*t1*I)

expect result:

x := omega1*exp(omega2*t1*I) + omega1/exp(omega2*t1*I)