Hi there,
my problem is the following: I have a polynomial p(alpha,beta,lambda_1,lambda_2,w). What I want to do is express it as p1(alpha,beta,lambda_1,lambda_2,w)+(alpha-beta)*p2(alpha,beta,lambda_1,lambda_2,w). I have done it manually and I have succeeded, but since I need to do the same for larger polynomials, I was wondering if you knew any way of doing this with Maple.

Thank you very much

I have written lists of parameter values and functional forms which I read at the top of the worksheet and use subsequently when I need numerical output.

For instance,

Parameters1 := [ s = 2 ];
Functions1 := [ U = 'proc(c) (c^(1-s)-1)/(1-s); end proc' ];
eval(eval(U(c), Functions1), Parameters1);
                             ...

Download dgil.mw

Hello,

I'm trying to solve a derivation of a function, that consists of parameters and varaibles (i want to find the value of x that setup the derivation to zero).

The solve function give me starnge results..

Follow up the file.

Can someone suggest me another solution to the problem?

Thanks 

Gil

Hello!

Could you pleasу tell me, is it possible to make MapleSim not to simplify equation set of my model and solve equations without simplification? I want to do this because simplification process (reduction of equations number) takes too much time in comparison with integration process.

Thank you!

Hi all,

I have a set of two coupled PDEs and Maple keeps giving me invalid initial/boundary conditions. I really don't know how to fix it. Attached is my worksheet. Please help me out.

Thank you

2dcase.mw

I'm very new to this... I need to find the total derivative of y=(a-3)/(b+3) given that a=r*t and b=s*t

This is in a similar vein to the Diet problem (integer programming), but harder.

http://en.wikipedia.org/wiki/Cutting_stock_problem

This guy has solved this problem using 3 programs, Maxima and LPsolveIDE and Excel:

https://docs.google.com/View?docid=dfkkh8qj_64rrpz86db

A text file generated by maxima is fed into LPSolveIDE ...

Can someone please tell me where I can find information on "Test Relation" that pops up when I right click one of my equations?  Type ?test relation or into Help and nothing comes up.

Thanks!

Download Test_Relation.mw

How do I edit a large proc to replace a couple of lines or add a few more if I don't save it and the screen was cleared?  Am I out of luck and have to retype it all back in?

And how do I substitute in a proc n_pts<5 to n_pts<5  or say substitute i=50 to i=30 .  I'm stuck with the operators.  I thought using delayed evaluation would work.  ie/  newproc:=subs( 'i=5' = 'i=30' , eval(newproc))

How can I encode to mp3?  Maple's AudioTools package only includes WAV file formats.  I would think by now Maple 15 would have included the mp3 format seeing that it is so standard. 

None-the-less, I feebly started to embark on what I thought would be a quick two step process - 1 - find the mathematics involved and 2 - code in Maple.  My searches brought me to some good information at www.mp3-tech.org ...

int(cos(a*z)/(z^2-4*z+8), z, method=contour)

why run in maple 15, unknown options method = contour

is it default to use contour?

but the result is the same as done by hand, i mean the answer from the book,

int(cos(a*z)/(z^2-4*z+8), z) return contain some Si  and Ci

Pretty basic stuff here...

How can I get Maple to do this - go from Step (1) directly to Step (5 or beyond).  I'm guessing that all I have to do is figure out how to enter the derivative dy/dx into the document and then Solve for whatever variable I like.

Thanks in advance!

Can I make a jpeg file into the background of a plot?  

I want to make a topological map the background of the xy plane.

http://g.co/maps/4fznf

Thank you.

When Benoit Mandelbrot was still alive I sent him an email:

Hi,
I am writing to you because I have trouble understanding why
the covariance function in the Fractional Brownian Motion (FBM) is given by:

(t[i]^(2*H)+t[j]^(2*H)-abs(t[i]-t[j])^(2*H))/2)

I would be very grateful if you could please explain this to me in simple and step by step terms.
I understand simple ARIMA models (P(t)=P(t-1)+E(t) where E(t)=p*E(t-1)+r(t)) which have the
same...

This is a characteristic equation in which I am trying to locate roots for E of the following polynomial:

2*b^3-3*b^2*a+3*b^2*E-3*a^2*E+3*a*E^2-E^3+a^3

Any help would be greatly appreciated!