@mq In addition, when calling package commands in procedures (such as Shuffle in your proc), better use their long form, which is Statistics:-Shuffle here. When repeated (or many) commands are necessary, call them within a 'use ... in ... end use' construct, or list the package with a 'uses' statement.

Using the short form can lead to ambiguities in more complicated situations.

@RegisLebrun You asked for a pointer to a web page for submitting bug reports: From the MaplePrimes menu bar, select "More > Submit Software Change Request" (a general term for feature suggestions, bug reports, etc). You can also select "Technical Support Request Form" at http://www.maplesoft.com/support/.

But for this particular problem, Markiyan Hirnyk has already taken care of that SCR.

@GPY Sure, a matrix is something different. You were talking about a vector before. Please get familiar with Maple's syntax, e.g. by reading ?MVselect.

@Mac Dude For what it's worth, 64-bit versions have been available since Maple 10 on Linux, and since Maple 12 on Windows and Mac OS X. Nevertheless, your recommendation is correct.

@cr-ms Your system has more than enough memory to simulate this model, but you should install the 64-bit version. It's somewhat tricky to install the MS VC compiler correctly (check Maple's Install.html, FAQs, and in case of problems contact technical support). We hope to remove this dependency in the future, but currently the external compiler is still needed for MapleSim. [No longer for Maple itself since version 18, as you might have seen in the update docs.]

It's possible that the internal error you're getting is a side effect of the address space limitation of 4 GB for all 32-bit applications.

@NicholasMarrone Thanks; I could download and run it, but unfortunately today was too busy, and will go on vacation now. A vague guess is that the eliminate command might help you. Maybe other users have more further suggestions. Good luck!

@Preben Alsholm That's right, this feature had been added in Maple 14. See e.g. ?updates,Maple14,de for detailed info. A good opportunity for the thread opener to upgrade. :-)

@Christopher2222 The Finance package is fully supported on 64-bit Windows since Maple 17. See ?updates,Maple17,addressedcustomerwishlist. [64-bit Linux and Mac OS X had never been affected by that restriction.] There are no limitations of packages and functions w.r.t. wordsize, AFAIK.

One case where users need to take care a bit is the Compile feature. See ?Compile, in particular section "The External C Compiler".

For using the Excel Add-In under Windows, make sure that Office and Maple use the same wordsize. Excel is available in a 64-bit version since Office 2010.

@nm Autocompletion works fine for me, both in Maple 18 and 2015. I'm not using the Escape key, however. When entering f(som it displays the (unique) completion in a yellow bubble tip, and hitting Tab or Enter does the job.

Edit: When unchecking "Automatic command completion" under Tools > Options > Interface, pressing Escape also completes the input. Just the bubble is not displayed.

@Carl Love It seems you overlooked that the first beta(t) is wrapped in a cos... Anyways, I tried this:

eq:=(-2*r*cos(beta(t))+J)*diff(beta(t),t$2)+sin(beta(t))*(r*diff(beta(t),t)^2+g)=0;
sol:=dsolve(eq,useint);
numelems([sol]);
ot1:=odetest(sol[1],eq);
ot2:=odetest(sol[2],eq);

The solutions and odetest results are rather long, but I don't have time today to investigate any further.

@BobTheAverage Okay, since you still didn't upload anything, I have no suggestions besides installing updates from here.

@Swordkill38 Side remark: To some extent, you can translate MATLAB code to Maple; please enter ?Matlab,FromMatlab and ?Matlab,FromMFile to open the help pages.

@itsme Good suggestion, but we also got an e-mail with the same report, and I've logged an SCR internally. Many thanks to user HeiniKlum, however!

The bug also affects Perl, the second new target language in Maple 18. A workaround might be

CodeGeneration[Python](Pi*(a+2),coercetypes=false);

Symbolic issues aside, for multi-dimensional integration you should take a look at this page. Of course, you need to upgrade to Maple 18 to benefit from that new feature.

@hamza almushet I've never seen that message. My guess is a side effect of some installation issue. So try reinstalling, and if that doesn't help, please contact our support team. Make sure you indicate your platform (OS version, 64 or 32 bit, any configuration peculiarities). Attaching install logs may help.