@lucaud What does DPDT stand for? The search box in MapleSim turns up nothing for that string.

Edit: okay, I found it: double-pole double-throw.

If I got its description right, then it is an Ideal Intermediate Switch in MapleSim, available under Electrical > Analog > Switches.

@fbackelj It's certainly a bug. Thank you for bringing it to our attention. I've submitted an SCR internally.

@bartzbeielstein Yes, please check our updated FAQ which says: "The current patch release candidate is undergoing quality assurance testing and barring any major issues, this means that the patch will be available soon."

This looks like Cholesky decomposition, right? If so, note that this algorithm can be applied to symmetric positive definite matrices only. If your procedure will be fed arbitrary matrices, you will need to check those conditions at the beginning.
You can compare your results with those obtained by LinearAlgebra:-LUDecomposition(..., method=Cholesky).

@Kitonum Yes, I agree, so I have submitted an SCR.

Do you want to enter a function of t? Or a function of a? Could it be that you wanted to enter

a -> piecewise(a>0, a*t ,0)

instead?

Thank your for pointing out this problem. I have submitted an SCR internally.

@Carl Love True, but my actual "framework" consisted of much more than a single Maple run. There was some file management involved (moving and combining output files), and for that purpose a shell script was ideal. AFAIR, Maple didn't have the FileTools package in the 1990s, only some basic I/O commands.

If the only purpose of such an e-mail is notification about status and/or results of long running computations, then there is no need for any external services. When I was a student, I used Unix commands "at" and "crontab", and called command-line Maple from a shell script. As soon as the compute job was done, I received an e-mail (locally, in my LAN) with a summary of the results. I don't recall the details, however.

@Carl Love I'm not a developer, but AFAIK the separate Build IDs (UI, kernel, library) have been synchronized a while ago, beginning with Maple 18. It was confusing some customers before. The maximum of the three values as returned by version() was different from the single ID in the About box.

For support inquiries etc., it is usually sufficient to tell a single ID. This is also being used in the update descriptions on our download pages.

The detailed version() output can be particularly useful when having multiple add-ons installed (toolboxes, e-books, MapleSim and its connectors and libraries).

@mriedel Thanks for bringing this problem to our attention. Chances are that it will be fixed in the next version. In the current development build, series returns the same result (after applying convert(%,polynom)) as the subsequent sum calls.

@acer Side remark: you need to include the images directory in your paths; prepend it to the actual filenames.

@Bendesarts I don't understand your new question 1, sorry.

About question 2: Just look up the help pages on Kinematic Exports and Dynamic Exports, which are linked from the GetMultibody page. There you find GetParams etc. documented (I did not check exhaustively). Yes, some may be considered as auxiliary or helper commands that do not deserve in-depth documentation.

Again, the Multibody Analysis template should give you an idea how to obtain the mass matrix and so on.

@YHLien Most probably, but currently I have no information beyond the linked FAQ page - sorry.

@Lucas2310 There is a q missing in one of the variables: 1316. If we change that to q1316, then IsEmpty(S) immediately returns true.