Thomas Richard

Mr. Thomas Richard

2273 Reputation

11 years, 216 days
Maplesoft Europe GmbH
Technical professional in industry or government
Aachen, North Rhine-Westphalia, Germany

From Maple 9.5 on, the int...

From Maple 9.5 on, the int command recognizes such integrands, so you could use `Diff(int(%,x),x)`, but there should be some more elegant approach...

This sounds like a bug to...

This sounds like a bug to me, because it worked in earlier versions. A workaround for Maple 10 is convert(convert(Diff(f(x)+g(x),x)-Diff(g(x),x),D),Diff)

Unsupported combination of versions...

You said you are running Maple 8 and Matlab 6.5. That is most probably the source of the problem. Please note that the link in Maple 8 supports Matlab 6 only. This is documented at the top of the `?Matlab,setup` help page. Maple 9 and 9.5 support Matlab 6.5, and Maple 10 supports Matlab 7 and 6.5, depending on the platform. Unsupported combinations may or may not work. For example, Maple 8 works with Matlab 5.3, but with 6.5, we have seen problem reports from other customers.

plotsetup(window)...

I don't know about your first question, but the second is easy: just use plotsetup(window);. To switch back to the default, use plotsetup(inline);. The same is available through the Display tab in the Tools/Options menu.

What does genvecs do?...

If you briefly describe what genvecs does, chances are good that you get replies from non-Mathcad-users like me.

rsolve...

Yes, such equations can be solved like this: `rsolve({Y(t+1) + Y(t) = (-1)^t, Y(0)=2}, Y(t));`. You might want to apply `expand(%);` to the result.

Units[Natural]...

I think the easiest way is to load the Natural Units Environment. Please see ?Units,Natural and ?examples,NaturalUnits. The example worksheet also points out that explicit conversions may be preferrable if efficiency is an issue. BTW: I guess your input lines were meant to be x:=4*m and y:=5*m rather than x:=4(m) and y:=5(m), resp.. The latter variants are interpreted as constant functions, and automatically simplified to that constant value. In the Natural Units Environment, the output of the former variant will be displayed as x:=4[m] and y:=5[m], using square brackets.

Simply apply "Unix Network"...

Simply apply "Unix Network" update, called Maple1002UnixUpgrade.tar.gz. I have not applied this to my 64-bit Linux machine yet, but it worked that way the last time (10.00->10.01), and the installer script for 10.02 uses the same technique.

It's better to let a crowd of people sea...

I'm not an expert on this topic, but I'd say that searching for such beasts on a single PC requires A LOT of patience, no matter what software you have. The largest known primes are usually those of Mersenne type, and according to the GIMPS Project, Maple 10's built-in list of Mersenne numbers is up-to-date. See ?numtheory[mersenne] for more information. In particular, numtheory[mersenne]([42]) will return the currently largest known prime. But even displaying it will require some time...

Sounds like a bug in the Maplet Builder ...

As a workaround, you could change the value for the 'lower' option to the Slider element in the exported .maplet file, using your favourite text editor. But make sure you keep a non-modified copy, because the edited file may not be readable from the Maplet Builder. This is a known limitation. If you create a Maplet the old-fashioned way (remember, the Maplet Builder is relatively new), you can use negative numbers from the very beginning, of course.

labelledcontourplot...

Robert Israel has a solution in his Maple Advisor Database. Please see labelledcontourplot.

Three approaches...

It depends on how you want to use them. Basically, there are two ways I can think of:
• External Calling: see `?define_external`
• Calling an executable: see `?ssystem` and `?process[launch]`, e.g.
Depending on the application, it might be preferrable to have Maple generate Fortran 77 source code and use that in your programs. In that case, please see `?CodeGeneration`.

Feature is newer than the book...

This feature had been added in Maple 9. Quoting from ?updates,Maple9,graphics: "The following three plotting routines have been updated to allow a list of curves or surfaces as input: plot3d, plots[implicitplot], and plots[implicitplot3d].". The example directly above that text already uses the new feature, just like your example does. I don't have Francis Wright's book on my shelf, but according to his book homepage he used Maple 6 (and later Maple 7).