Create a maplet or worksheet for the game Blokus. 

On that note, we should have a counter or tally in the post to show how many people want to work on or are attempting to work on the challenge.  That way people can see if there is progress happening behind the scenes.

Mathematica has a way of clipping plot output to a region given by a function. See http://reference.wolfram.com/mathematica/ref/RegionFunction.html

Can I do something like that in Maple?

Jacques' post on the maple.vim project spurred this post.  Vim users cannot have all the fun.

About a year ago I wrote an Emacs front-end for the Maple debugger.  I've used it since---it is now my primary debugging tool for Maple code.  What it does is allow stepping through interpreted Maple code in an Emacs buffer.  That is, rather than being presented with a single line of...

Is there a way to import Latex into Maple? Actually, my immediate goal is to convert mathtype expressions into Maple.  I can convert Mathtype into latex. If I could convert latex into Maple, I would be done.

Incidentally, exporting Maple into mathtype is easy.

I have Maple 12.

This is a follow-up to a rather old posting about maple.vim.  There is now a maplevim project on google code to helpfully get the community to work on upgrading maple.vim a bit more frequently. 

Right now there is a shipping version of maple.vim checked-in, as well as a set of 'pieces' (in the pieces sub-directory...

While reviewing code the other day, I came across the following snippet (here converted to a procedure).

Ds := proc(V::set, n::posint, t)
local i,v;
    {seq(seq((D@@i)(v)(t), i=1..n), v in V)};
end proc:

The purpose of this is to generate a set of derivatives at a point of a set of unassigned names. For example

 Ds({x,y},2,0);
               ...

It always makes me happy to see people using Maple for interesting things.  So I was pleased to see this blog post on Technology Review about this paper on arXiv on quantum randomness.  In this case, they are just comparing random numbers generated from lasers (this is why physicists get better press than mathematicians: LASERS!) with pseudo-random numbers generated using Meresenne Twister implemented in Maple, pseudo-random numbers generated using a Celluar Automata method implemented in another computer algebra system, and then binary digits of π treated as a pseudo-random sequence.  (Spoiler: the lasers win)

While not a particularly interesting use of computer algebra systems, it did inspire me to revisit my old blog post on pseudo-random numbers in Maple and now I am working on a follow up that talks about some of the mathematical and statitical tests used to test the quality of pseudo-random number sequences which I hope to post soon.

Hi, Can anyone help me in solving the following system of ode, i'm new in maple and i faced some problems in using it.

the system:

diff(u2(y), y, y)+m*b*rho*h^2*GR*(c3*y+c4) = 0,

diff(u1(y), y, y)+K*(diff(N(y), y))/(1+K)+GR*(c1*y+c2)/(1+K) = 0,

-2*K*(2*N(y)+diff(u1(y), y))/(2+K)+diff(N(y), y, y) = 0

with the following boundary conditions

u1(-1) = 0, u2(1) = 0, u1(0) = u2(0), (D(u1))(0)+K*N(0)/(1+K) = (D(u2))(0)/(m*h*(1+K)), (D(N))(0) = 0, N(-1) = 0

Recently I wanted to create a simple 2D-plot representing this piecewise expression:

T1:=piecewise(x>=0, 3.5*x*13/3+13, x>=20, 3.4*x*13/3+13, x>=30, 3.25*x*13/3+13);

or alternatively: T1:=t->piecewise(t>=0, 3.5*t*13/3+13, t>=20, 3.4*t*13/3+13, t>=30, 3.25*t*13/3+13);

Unfortunately, no matter whether I entered it as a function or as an expression, I was not able to make Maple plotting this function correctly for a domain D

Hi,

Please take a look on this problem I have about converting a Vector to a List. At the end if the program, the list F contains the elements of the Vector Y, but not in the good order.
It gives a result which is correct for a small size of Vector, but not for h = 1000 !

#differents values of h are tried h := 100 and h:=1000
h:=1000;

E := Vector[1..h];
for u from 1 to h do
Y[u] := u;
end do;
for z from 1 to h do
   E[z...

Is it possible to make a plot like this:

This sites needs better rendering of 2D Math.

Here is a sample from the Wikipedia page for Maplesoft, from the pdes example section. The image on Wikipedia is quite nice (it's alt-tags have LaTeX code, which may be a hint).

Hi

I need to insert a legend in a Pie chart, but I want to do it from the command line:

> with(Statistics);
> T := [algodón = 26, lana = 5, tabaco = 7, fruta = 9, arroz = 13, té = 5, carne = 14, otros = 21];
> P := PieChart(T, sector = 0 .. 360, color = ["red", "Orange", "yellow", "green", "ForestGreen", "blue", "MediumPurple", "LightBlue"], captions = relative);
> plots[display](P, title = ["Distribución de las exportaciones...

I have the following differential equation:

de1:=(v(r)^2*(diff(T(r),r)/(1+T(r)^2)+T(r)/r)-T(r))*(v(r)^2*(diff(T(r),r)/(1+T(r)^2)+T(r)/r)+T(r))=(1+v(r)*diff(v(r),r))*(1-v(r)*diff(v(r),r));

I would like to be able to eliminate T' and obtain T as a function of r, v(r), and v' (and possibly v'').

Is this possible?

Thanks, Geoff