Dear all,

I think I came over a quite fundamental error in Maple 10's CodeGeneration package. Even without knowing Matlab, it should be clear that the conversion into Matlab code goes wrong here:

restart;
tt :=  x^(1/y) :
with(CodeGeneration):
Matlab(tt);

produces

  "cg = x ^ 0.1e1 / y; "

Even Maple 13 does not recognize Excel 2007 files (*.xlsx).

Excel 2007 files can be saved as Exel 2000 files before using the Import Data Assistant but I think it is not up to date to do so.

A few mornings ago, I drove to the office, bleary-eyed and still waiting for my first liter of coffee to kick in.  I parked, exited my car, and started walking to the entrance.  Someone a few meters ahead of me held the door open, but let go while I was still about a meter away.  Judging the closing speed of the door, I thought I had enough time to sneak in.  However, during the latter stages of its closing sweep, it suddenly sped up, and slammed shut. Not yet being suitably caffeinated, I uttered a small curse, damning the door and all its close mechanical relatives, and reached for my key fob.

The help page describes it as a technology preview. I never use this because my mouse isn't precise enough.  What do you think, what purpose will it have later, besides finding missing symbols ?

Hello there,

I got myself Maple 13 recently and tried to plot   > plot3d(abs(SphericalY(1, 0, theta, phi)), theta = 0 .. Pi, phi = 0 .. 2*Pi, coords = spherical);
 

But the plot doesn't look like it should at all. Since I'm pretty sure that the spherical plotting is very well developed I believe there is a mistake in in the definition of SphericalY.

If there was truely a bug, what can I do to get this fixed as soon as possible?

Regards,

Sven

Is there a convenient way to express a 2nd or higher derivative, say in an eval statement, so that it is not confused with an expression containing an exponent?

I recently ran into an interesting twist on the infamous Maple anti-pattern:

# A very garbagey way to build a list
l := [];
for i from 1 to 10000 by 100 do
    l := [op(l), isqrt(abs(floor((5000-i)/2)))];
end do;

A lot of users fall prey to this method of building a list rather than using :

# generate a list without extraneous garbage
l := [seq(isqrt(abs(floor((5000-i)/2))),i=1..10000,100)];

Modelica is an open language for (lumped parameter) modeling and simulation and is generating a growing following, especially in Europe. Modelica is also at the heart of simulation tools like MapleSim. We are generally not making a big deal of that fact and as a result we have a regular stream of actual and potential customers asking us why we are not more vocal about our use of Modelica. Do we not believe in open...

It was twenty years ago in May that I started with Maplesoft (known then as Waterloo Maple Software) in a tiny office at 608 Weber Street North in Waterloo, Ontario. After having done my graduate work under Maple co-founder Gaston Gonnet, I was invited to join the fledgling company as Technical Manager and the first full-time employee.

I've been using Maple 12 on a Mac for a few months and came up with some suggestions:

(1) make it possible to add one's own symbol combinations to the Favorites palette

(2) allow symbols in the Favorites palette to be re-arranged

(3) permit redefining key-bindings so the Home/End keys send the cursor to the beginning/end of the current line, as on the PC (and in this posting box), etc.

(4) have keyboard equivalents for basic actions, e.g. Esc for the Cancel button, Cmd-[ or equiv. for the PreviousPage button, etc.

Hi,

for pictures like this i'd like to have an arc tool in the drawing part of Maple. One that lets me create a cleaner  arc around the angle u. Here I used the pencil tool instead.

Does anyone know what kind of algorithm Maple (e.g. version 12) uses for generating random samples by the means of Sample command

in the Statistics package?

Thanks a lot for every comment.

The SAE (Society of Automotive Engineers) World Congress is an annual event in April that draws automotive engineers from around the world to Detroit to learn about and share thoughts on new techniques and technologies. Once again this year, Maplesoft was an active participant. This was a milestone event for us as it was the first SAE Congress where we could show off and fully demonstrate the potential of the MapleSim/Maple solution. Even in these trying times in the auto industry, our corner remains vibrant and very optimistic about the future.  In no particular order, here are some highlights.

Something doesen't seem right, i use the code from the maple - visual basic example (from samples\OpenMaple\msvb ) of plotting a function.

with OpenMaple from VB, the function exp(x) has the asymptote at -infinity, under de OY

and with real Maple doesen't seem to have any problem, the plot looks OK.

who's fault is it and what can I do to improve the quality of the plots from VB - OpenMaple aplication

these are my results

OpenMaple :

Maple :

While marketing material naturally talks about new features in a release, we of course also put considerable effort into investigating and correcting problems with the product. Many of these fixes are in direct response to problems reported on MaplePrimes.  Thank-you. We recognize that reporting these issues takes time, and we really appreciate your help in making our products better.