I suppose you are referring to the 17.02 update. Then please see the details at the download page:

"A new, alternative keyboard short-cut for in-line evaluation: Alt+Enter"

Does that work for you? It was changed because the former short-cut made trouble with international keyboard layouts.

It's not possible to call Maple library functions from a Custom Component. However, for optimization, MapleSim comes with a template that you may adjust to your needs. See the paper-clip button, then select Optimization.

Please see ?updates,Maple17,LocalNames for a simple solution. If you are using earlier versions, try unprotect(gamma), which is less elegant.

I have not entered the input from your screenshot, but you will need to replace pi by Pi. Otherwise Maple will just interpret pi as a lowercase greek letter with no mathematical notion.

For future questions, please copy&paste your input directly to the MaplePrimes editor (there's also a 2D math mode, but in simple cases plain text would suffice), or upload your worksheet, using the green up-arrow button.

Attach an Angle Sensor to flange_b of the revolute joint, and set its unit to deg (default is rad). Then attach a probe to the sensor output. The help page for Revolute joints gives a hint on how to add 1D rotational components.

We have a number of customers who run Maple 17 on that Ubuntu version, altough the officially suported ones are 12.04 LTS and 12.10.

In case of a single user license, you might have to install the 'lsb-core' package first. Please see http://www.maplesoft.com/support/faqs/detail.aspx?sid=32610 for background info.

To solve the ODE system obtained by the separation ansatz, just add the 'build' option:

pde := diff(y(x,t),x$2)+diff(y(x,t),x)/x=diff(y(x,t),t)/alpha;
sol := pdsolve(pde,'build');
pdetest(sol,pde); # optional check

Note that _c1 (lowercase) denotes the separation constant, whereas _C1, _C2, _C3 are the integration constants.

Not sure about freezing, but in case you see a grey window, check out this FAQ: http://www.maplesoft.com/support/faqs/detail.aspx?sid=151345

If that doesn't help, please contact our support team (see http://www.maplesoft.com/support/index.aspx) or your country's reseller, if applicable.

I don't know anything specific about Sqlite, but Maple's Database package supports essentially any SQL database for which a JDBC driver is available (version 3 for full functionality, version 2 for limited functionality). So if that is the case, I'd give it a try. When the package was implemented (initially as a separate product), we officially supported the popular ones such as MySQL, Oracle, MS SQL Server, etc. And I recall that PostgreSQL worked almost out of the box on my Linux machine although it wasn't explicitly listed.

Please see the ?Database help pages for more info, particularly the sub-pages on JDBC and on known issues.

When you open the file in a text editor, you see that the discrepancy occurs in writing the file.

The %e format uses a default of six digits after the decimal point, please see "Floating-Point formats" and the Examples section under ?fprintf.

You will have to override it like this: fprintf(Q, "%13.11e\n", x):

No, OpenMaple requires a fully installed Maple. Please also see OpenMapleLicensing.txt in Maple's extern directory.

The easiest way is probably:

convert(1/(1+z),FPS);

Please see ?convert,FPS for more details.

There are various ways to achieve this. Two of them are (e.g. for n=3):

y := (a,b,c) -> sqrt(a^2+b^2+c^2);
x := Vector([u,v,w]);
op(y~(entries(x)));
y(entries(x,'nolist'));

Here's some background info on the grey window problem in the Mac installer:

Apple has released a new version of the “Java for OS X 2013-004” update that fixes the display problems that all Java-based programs were experiencing in OS X. You can download this update through the Apple App Store under the “Update” heading, or via the Apple website at:

                http://support.apple.com/kb/DL1572

Once you have installed the update, please try to launch the Maple installer and you should be able to proceed through the install as normal.

If you are experiencing any problems, or if you have any questions about this procedure, please report them to support@maplesoft.com.

This feature is configurable interactively through the Tools > Options > Precision dialog, or programmatically; please search for "elision" in the ?interface help page. E.g. try

interface(elisiontermsthreshold=100);
expand((a+b)^202);

which will omit the three "central" terms of the result.

Furthermore, there's the LargeExpressions package which provides a different approach, namely of "veiling" subexpressions.