Since the FIFA World Cup final is approaching quickly, I have created this animated Netherlands flag.  It is for my Dutch acquaintances to cheer for their favourite team during game.

with(plots):
p := [ seq( 
          plot( [ seq((1/4)*sin(x+`if`(j > i, 1, 0))+1+2*i, i = 0 .. 3) ],
              x = 0 .. 2*Pi, y = 0 .. 8, 
              color = [white, blue, white, red], filled = true, axes = none), 
          j = [0, 1, 2, 3, 4, 3, 2, 1])

Some images have reverted to some sort of equation form layout.  As an example look here http://www.mapleprimes.com/questions/87786-Smoothing-Data-Points-

What has happened?

Just for fun, I'm reviving the Maple soccer ball in anticipation of the FIFA final. You can make a simple animation by adding the option viewpoint=[circleleft] to the display command.

with(plots):
geom3d[TruncatedIcosahedron](p);
V := evalf(geom3d[faces](p));
display(seq(polygonplot3d(V[i], color = `if`(nops(V[i]) = 5, black, white)), i = 1 .. 32), scaling = constrained);

I suppose this topic has come across many peoples minds at one time or another and I've only taken this number for granted and with a grain of salt.  I have become curious as to what other Maple users would run the memory usage up to? 

For myself I find on average usually running below 10Mb or so.  I suppose this is average, for me, but I haven't usually created large worksheets, I don't think I've ever let it run over 40Mb. ...

Here is yet another finesse (new to me) in getting better performance for some floating-point computation involving the Statistics package.

> restart:

> X:=Statistics:-RandomVariable('Normal'(0,1)):

st:=time():
seq(Statistics:-Quantile(X,1/i,numeric),i=2..10000):
time()-st;[%%][-1];
                                    6.786
                                -3.719016485

> restart:

> X:=Statistics:-Distribution(Normal(0,1)):

This post had a centered H2 header that appeared fine in the wysiwyg post editor during composition but is absent in the Preview or actual Post (in my firefox 3.6.6).

It appeared in the source view, during composition in the editor, like this,

<h2 style="text-align: center;">This my header.</h2>

I tried it also in an earlier submission, with the same result. When I attempt to re-edit that comment, the header was then missing in the source view as well as the posted view.

Could it be, that the submission step causes some html content to vanish?

I enter through http://www.mapleprimes.com/recent/all, but what I see is not true:

http://www.mapleprimes.com/questions/94758-Why-Is-Summand-Singular-Here
is shown as having 1 reply, while it has 4 replies.

And if I do not see anything new on topics which I 'follow' then I just leave the site.

The Maple ?Compiler can compile a limited subset of Maple commands to native code. The result is substantially faster than running interpreted Maple code. This article shows how you can save a compiled procedure for reuse.

When a Maple procedure is compiled, a shared object library (dynamic-linked library for Windows) is created on the file system, as a temporary file.  When the Maple...

If you search for a phrase which matches (fully or partially) the title of a post A, then the search results will contain every other post which the search engine recorded while post A was listed in the right panel.

In other words, the search engine recorder is picking up  the right panel (latest titles, per forum) displayed while viewing other unrelated pages. So lots of other pages get inappropriately connected to all the keywords or phrases in those latest titles.

The Linear Algebra package seems only able to handle Vector and Matrix algebra when the dimensions are given specifically.

It would be very helpful if the package were to be extended to cope with the situation where some or all of the dimentions were given symbollically. Of course, assume could be used to indicate when two dimensions were equal.

Are there any plans in this direction for future releases of Maple?

I had started to create a procedure for finding the centroid of a list of points.

Centroid := proc (list)
local a, centroid, x, y, i:
a := nops(list):
x := 0:
yi := 0:
for i from 1 to a do
x := x+list[i, 1]:
y := y+list[i, 2]:
end do:
print(`Centroid is at`,([xi, yi]/a)):
end proc:

But I thought there needs to be something simpler than that.  And here we are.

Centroid2 := proc (list)
local i:
print(`Centroid is at`, add(i, i = list...

Happy Dominion Day.  

acer

There exists a broken link on the last post here http://www.mapleprimes.com/posts/41183-Tip-Transpose-A-Pair-Of-Indices-Of-An-Array?r=76538 

Having Maple 12 I try to use concurrent gfun version 3.52 and have problems
to run an example (from a lecture):

libname:= "D:\\_Work\\Maple_Work\\z_Packages\\gfun", libname; # my setting

with(gfun) : gfun:-version();
with(NumGfun) :
                                 3.52

  restart; interface(version); Digits:=14;

    Classic Worksheet Interface, Maple 12.02, Windows, Dec 10 2008 Build ID 377066

  f:= x -> (x+1)^(x+1);
  simplify(int(f(x),x)): 
  F:=unapply(%,x);
                                        (x + 1)