MaplePrimes Questions

Please help me to make sense of the ways to use the simplify function. In this particular case Maple does some computation and gives me some huge output which I paste below. When I try to simplify the huge output Maple just hangs. But if I use varied commands of simplify detailed below such as simplify(huge_output,symbolic)  or  simplify(huge_output,size)  Maple gives me an output but none of the output are equal to each other and I also noticed that in one instance...

 Okay so I can see how to get the poles. But I have some further questions.

 

 

1) For beta AND Q both GREATER THAN 0 WHICH poles have positive imaginary part and is there a PROGRAMMATIC way of selecting these ones?

 

2) How do I calculate the residue at these poles? The approach given by Alec above seems useful and is much...

Dear fellow users,

I am trying to call Maple functions from Matlam .m file. How can I do it?

I am using Matlab 7.12 (R2011a) and Maple 12.

Thanks in advance..

Dear Maple users,

I am trying to solve a non linear equation for complex and real roots and I am using following command:

answer:=fsolve(func,x,{x=-100-100*I..100+100*I},complex); % here 'func' is a nonlinear function

to search for all possible roots in the given range. But fsolve does not return all possible roots. Mostly it returns one. But I am sure the function has more roots in the specified range

But, if my "func" is simple polynomial (e.g. func= x^5-3x^2+3x-1...

I'm trying to write a for loop that will generate several procedures, which doesn't quite seem to work as expected.


Here is the sample code:

for j from 1 to 2 do
f[j]:=proc(x,y)
x+y^(j)
end proc;
od;

Then if you run the following, you get:

f[1](x,y) = x+y^3

f[2](x,y) = x+y^3

 

Whereas, I'd like to have:

f[1](x,y) = x + y^1

f[2](x,y) = x + y^2

Any suggestions on why the j value...

Hi there,

I am new to Maple. I need to solve a non-homogeneous partial differential equation (eg. poisson equation:

pd := expand(Laplacian(u(r,phi))=g(phi))

where g(phi)=Acos(phi)

 

My problem is that when I try to use the command  pdsolve, I get wrong answer. Cant maple solve a non-homogeneous equation directly? Do I need to guide it to solve the problem? How?

 

I am stuck with this problem for many days. :(

I would like to be able to enter an assumption into maple indicating one variable is much greater than another.  I would then like maple to eliminate the smaller variable term when it is added together with the much greater term.  However when I use the >>> symbol in maple along with assuming I get an error. 

> eqn1 := y = a*t+b*t;
                        ...

Hi,

I want to apply a complex differential operator to an expression "polynomial in the imaginary part * differential operator".

I have been unable to figure out how to do that using a formal operator and a concrete one that takes care of differentiating the polynomial.

In more detail:

Let $d$ be (my complex number is $x+iy$)

$d:=\frac{\partial}\partial x}- i\frac{\partial}{\partial y}$

which I want to apply to

$p(y) d$

dsolve event handling looks like a great tool, but I can't understand how it works and it's not sufficiently popular to google my way to examples online. There are two things I'd like to do: 1) interrupt the computation once some variable leaves a certain range, 2) interrupt the computation if the solver gets stuck into an infinite loop. Both are documented in the help, but I don't understand it. Suggestions welcome, thanks!

http://www.maplesoft.com/support/help/Maple/view...

Hi,

I have 5 docs with datas (x,y), like this one : BEF1txt

I want to put the 5 graphs side by side (parallels linears fonctions in a 3D graph). So I added the z data, z=1 in this case, and BEF2 got z=2, etc... But I am not able to make the 3D plot with the 5 linears fonction side by side.

May you help me please?

Thanks

Hi All,

I've made an array plot of 5 plot3D objects, and I would like to export the entire set of plots to a single GIF/JPEG image. Presently, I am exporting the worksheet to an html file, for convenience. My hope is to avoid exporting each plot individually and merging them later in gimp. It should be doable, especially if the html export does so implicitly?....Anyway, got ideas?

Thanks! ~A

 

> I would like to integrate the following expression that I call s2

 

 > s2 := (1/2/Pi+2*Q*u/(1+u^2))^2/((1+beta^2*(1/2/Pi+2*Q*u/(1+u^2))^2)*(1+u^2));

 using the residue theorem. To do this I first want to find the roots (poles) of the expression. I do this by solving for the denominator equal to zero as below.

 

> s3:=(1+beta^2*(1/2/Pi+2*Q*u/(1+u^2))^2)*(1+u^2);

Hi--

I'm using Maple for an extensive research write up and need to somehow expand an extremely large function. The function is in terms of four variables, and each of those variables is either a function of x or a derivative of a function of x. I've attempted to use the "mtaylor" command, but it throws up an error when I try to input functions as my variables. I'm wondering if there's another way to do this. I've looked at using the "expand" command, but I don't see...

Hi, I am new to Maple, and, though I have scoured the internet and Maple's help, I have been unable to find a way to construct an element of F[x], where F is a finite field. Just to clarify, I am looking to construct a polynomial with variable x (eventually it will be multivariate, but I think I can extend to that easily), with coefficients from some finite field of size p^k, p and k being given.

I have seen a few examples online of people converting polynomials to...

Hi
I wanted to solve a pde system but I received this error.


Error, (in pdsolve/numeric/process_PDEs) variable(s) {m} are in the PDE system but are not dependent or independent variables.gyro_beam.mw

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