I am working on this d2.pdf       problem,is ther any solution with maple?

 The coefficients are function of (T) and I would like Si's is also a function of T.

The well known(!) Heun's equation is,

df:=diff(y(z),z,z)+(gamma/z+delta/(z-1)+epsilon/(z))*diff(y(z),z)+(alpha*beta*z-q)/(z*(z-1)*(z-a))*y(z) = 0;

The solution is the general Heun's functions and it should be written as HeunG according to the help file of Maple 14 but my solution is found in terms of some function called HG which is not listed in the help system.

1. Are they the same?

I am using display command to get implicitplot. But I only get the graphs in one red colour. I want to get graphs in different colours. How to do that? 

Hey everyone.

I have a wierd problem when using the "Units[Standard]" addon.

I'm trying to do some simple thermodynamics calculations, and need to raise certain values in an irrational power.

It looks like this:

restart:
with(Units[Standard]):

n:=1.38:
p1:=1.1[bar]:
v1:=3[dm^3]:
v2:=0.4[dm^3]:

p2:=(p1*v1^n)/(v2^n):

If I execute it, I get this error:
Error, (in Units:-Standard:-^) a unit can only be raised to a rational power

I wish to solve the following equations simultaneously:

(diff(g(t), t, t))*f(x)-(diff(f(x), x, x))*g(t) = 0

and

(diff(f(x), x))^2*g(t)-(diff(g(t), t))^2*f(x) = 0

I searched the help files and did the following:

I have tried using solve but get an error

solve({`&x`(diff(g(t), t, t), f(x))-`&x`(diff(f(x), x, x), g(t)) = 0, `&x`((diff(f(x), x))^2, g(t))-`&x`((diff(g(t), t))^2, f(x)) = 0}, [f(x), g(t)])

I really like this package:

http://www.maplesoft.com/applications/view.aspx?SID=1671

But it seems to be impossible to intersect more than two areas:

restart;
with(InequalityGraphics);
inequalityplot(sin(x)+4*y>8 and x*y>1 and y<3-x,x=-2..4,y=-2..4,feasiblepoints=30);

It works if I leave out a condition:

inequalityplot(sin(x)+4*y>8 and x*y>1,x=-2..4,y=-2..4,feasiblepoints=30);

1. How do I 
2. Write a maple program to calculate the probability that k cards in 3-dimensonal set game (out of 27 cards) contain a set for k=3…9.

      3  randomly generate 12 cards in 4-dimensonal set game, either find a set or report “no set”.

I selected the whole document and expanded the document blocks. There near the top of the document were nine copies of "plots[interactive]()" all in a row. Deleting them fixed the problem. Seldom is a fix so easy. Many thanks.

Hi,

My data are 3 numbers that evolve in time: it makes a matrix n*3, where n is the number of occurences in time. I want to apply automaticaly a calculation (solution of a polynomial) n times on my data. How do I do that?

Thanks in advance,

Florent

Hi, I have the following problem with Maple 12:

all the decimals in plots (tickmarks) are displayed with a comma (e.g. 0,5).

Is it possible to replace the comma by the  point (i.e. 0,5 -> 0.5 ) ?

Unfortunately I cant see appropriate setting in the Maple help.

However the problem is rather serious: some journals (e.g. Phys Rev D)

require the tickmarks to be written without commas (the

This is my code:

> F := a*c;
                              a c
> K := (a*c)^2;
                             a^2  c^2
> simplify(%);
    ...

Hi all,

I want to get the general solution of the Laplace equation with boundary conditions below:

sys[1] := [diff(A(r, theta), r, r)+(diff(A(r, theta), r))/r+(diff(A(r, theta), theta, theta))/r^2 =0, D[2](A)(r, theta0) = 0, D[2](A)(r, theta0+beta) = 0, D[1](A)(R1, theta) = 0, A(R2,theta)=f(theta)];

pdsolve(sys[1]); do not give me the solution

Thank you to help to obtain the general solution and how (the method) to obtain this solution with Maple

the integral int(1/(1-2*r*cos(x)+r^2)^p,x=0..Pi/4), where 0<r<1 and p>1/2, or to find its asymptotics in r as r->1-?     

Thanks in advance.