My system crashed this morning just as I was finishing a post to a forum. The post didn't make it to the forum, but after I got back online, when I tried to recreate the post and upload the file, the File Manager would say that I had uploaded a different file and give me the link to that one. If anyone wants more details, just ask.

I'd like to be able to delete some files that I uploaded that are not used (as a result of the problem above).

~R~

While trying to learn how to use styles, I observed puzzling behavior in two ways: styles were changing that I had not changed, and images seemed to be moved around in table cells. I created this document so that I could see how each style worked, and, to my surprise, found that the Normal style affected other styles in an unpredictable fashion.

I like the way styles are handled in Maple and how easy they are to apply to other docs. I have created a default style doc that has all the styles listed by name and formatted by the name of the style. That way, I can see what the style looks like, and it is easy to apply a given style to a new document.

Style listbox is not sorted by alpha, so the new user must go strolling around looking for the desired style.

Can't find information about the User Dictionary in Help. Finally found a reference for Maple 8 on the web, and it got me to the correct place in Maple 12.

If it's there, perhaps we need a better link to it; if not, perhaps it could be added...

~R~

We are going to show a roundabout but rather effective method of solving some rather complicated (definite) integrals in closed-form via a rather unusual method: a special factorization of linear ODEs.  The example we will use is a 2 week old question that has yet to get an answer.

First, the problem: compute the integral

Not talking about giving wrong answer (as, for example, in A110375 thread), many Maple comands are amazingly inefficient. For example, SearchAll from ListTools pakage,

time(ListTools:-SearchAll(2,['$1..1000'$1000]));

                                33.977

Compare it, say, with the following obvious way of doing that:

I'd like to see the following examples in the help page for sqrt,

sqrt(149^3);

                        149*sqrt(149);

sqrt(151^3);

                        sqrt(3442951);

Alec

If you go the Help in Maple 12 Standard for "page numbers" you find directions to go to Format and look for Page Numbers, but there is no Page Numbers under Format in Maple 12 Standard (there is in Maple 12 Classic).

So, how come in command line, if I enter a/(b*c), I am returned with a/b/c?  Is there anyway to preserve 'intelligent' denominator groupings?

I have a problem in cpu usage.
My PC: X86- Intel Core 2 duo 2.2GHz - WinXP-SP2-RAM 2GB FSB 1066

So, after many years in the making, version 1.0 of wine is released.

Can anyone say, whether it'll run Maple 12?

acer

The following appears to give two different answers.

Any suggestions?

> restart:
> Re(z);
> Re(a);
> Re(b);
> assume(a>0,b>0,z>0);
> H:=sqrt(b*(1+z)^3+a);
> bot:=int(1/H,z=0..infinity);
> evalf(subs(a=3/4,b=1/4,bot));
> H1:=sqrt((1/4)*(1+z)^3+3/4);
> int(1/H1,z=0..infinity);
> evalf(%);

This isn't strictly a Maple question, however, it arises because I'm trying to convert a Maple postscript plot to a png and it is not working; the result has no background color so is essentially impossible to view.  I use ImageMagick's convert to convert from eps to png.  Previously I hadn't had a problem with that, probaby one of my upgrades has changed something (ImageMagick).  Any ideas?  Presumably there is a way to force a background color with the ImageMagick convert command, but the obvious guesses haven't worked. 

I have been trying to get Maple12 to generate C code to implement the
quadratic formula (to produce a root of a second degree polynomial).

My failure to make any progress leads me to conjecture that even
though C is Turing complete as a programming language, Maple12
believes C is incapable of dealing with complex numbers.

* Is that conjecture correct?

I subsequently attempted to use "Re(x)" and "Im(x)" in two procedures
(the first procedure to return the real part, and the second procedure

In the recent discussion about patching, a question about patching a function f including local variables of a module or another function was discussed. For example, let it be defined as

A:=proc() global f,t; local x,y,z;
f:=()->x+y();
y:=()->z;
t:=()->x+z;
x,z:=0,1;
NULL end:
A();

Now,

op(f);
                            () -> x + y()
f();
                                  1

How to change it so that it would return 2 instead of 1, without reassigning it?