Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

Hey its Paul, I have another similar post to this one where I ask this question as a continuation of a question I had previously asked. However I am going to keep the two questions separate.

At each point I have the same data as I had in the previous question:

c:  an integer from 1-5 specifiying which differential equation was used to calculate the z value at this point (this information shold be represented by different coloured vectors)

x: this is just the x position of the data point

y: this is just the y position of the data point



den1 := (1/2)*((2+x^2)*sqrt(4+x^2)+2*sqrt(4+x^2)*cos(t*sqrt(4+x^2)*tau/`ℏ`)+sqrt(4+x^2)*(cos(t*x*tau/`ℏ`))(2+(2+x^2)*cos(t*sqrt(4+x^2)*tau/`ℏ`))+x*(4+x^2)*sin(t*x*tau/`ℏ`)*sin(t*sqrt(4+x^2)*tau/`ℏ`))/(4+x^2)^(3/2)

 

den2 := 4*cos((1/2)*t*x*tau/`ℏ`)^2*sin((1/2)*t*sqrt(4+x^2)*tau/`ℏ`)^2/(4+x^2);

 

den3 := 4*sin((1/2)*t*x*tau/`ℏ`)^2*sin((1/2)*t*sqrt(4+x^2)*tau/`ℏ`)^2/(4+x^2);

Also g1 and g2 are costants. I need the expression of  T,that solves the equation,  in function of  x1, P, g1, g2 because later I've to use this expression in Fortran. However I find some mistakes in the equation. The correct equation is funz=0

Thanks

I'm using maple to optimize a certain problem. I have two matrices, A and B both of size m by n. Now I want to maximize alpha(a scalar) such that Bx>=alpha*Ax for arbitrary x. So I gave maple the following problem: input:=evalm(A&*X): > output:=evalm(B&*X): > for i from 1 to m do > constraint[i]:=output[i]-alpha*input[i]>=0; > od: > Constraints:=seq(constraint[i],i=1..m); > sumconstraint:=add(x[i],i=1..n)>=10; oplos:=NLPSolve(alpha,{Constraints,somconstraint},maximize=true,assume=nonnegative); My problem is that maple sometimes can't come up with an answer and tells me:

end

 

 

 

 

 

 

 

'pv:=p2'); %The variable a is matlab variable 'm:=m');'m1:=m1');'f:=piecewise(x>=pv[i], 1/(m1), x<pv[i], 0)')maple('r:=sum(f,i=1..m1)');

 

 

Hello!

I got the Quaternions package (version 2007) from MapleSoft:

www.maplesoft.com/applications/app_center_view.aspx

 

Now I type in the following statements:

I'd like to have better control over formatting. It seems that Maple will put one image next to another but will only allow 1 line of text next to the images. Is there advanced formating control available?

~Rich~

Hallo to everybody I have some problem with the partial derivation of a matrix... I want to derive all the term of a matrix for "x". The matrix contains symbolic variable that are functions of x,y,t.  How can I do that? I attach to you my sheet,I hope that you can help me

thanks a  lot

alberto

 

 

How do i get 20th iteration for following fixed pt problem

x = exp(-x/2)

Please help.

 

hello..

everybody who read this message, please help me..

i really need your help..

i am given an assignment about heat equation and i need to solve it by using Maple.

i know nothing about Maple even never use it before.

this is the question:

Consider the heat equation ut(x,t)=0.2uxx(x,t) with the following boundary and initial condition:

u(0,t)=u(1,t)=0, t beetween 0 and 0.1

u(x,0)=100sin(pi*x), 0<x<1 take h=0.1 and k=0.01

Hi all,

I am looking for toolboxes that can handle simulation and solution of
SED with jumps, say levy processes, jump diffusion processes, etc.
Could anybody give me some pointers to really good ones in Maple and
Matlab? I did google search myself and have some findings... however I
would like to know some really good ones and popular ones so I can
discuss with fellow users more conveniently...

Thanks!

HI2all! I use c++ builder 5.0 to create interface for maple code.At first I tried to start example from openmaple help topics. I have copied example and have inserted it to console wizard of c++ builder. Copy header files to work directory... At first i received(for strings of .h files: INTEGER64 int64;): [C++ Error] mpltable.h(239): E2176 Too many types in declaration [C++ Error] mplshlib.h(148): E2176 Too many types in declaration [C++ Error] mplshlib.h(210): E2176 Too many types in declaration [C++ Error] maplec.h(266): E2176 Too many types in declaration

I am having problems using implicitplot.  I run this code and it worked and today I tried it again and it gives me the following:

with(plots,implicitplot);

implicitplot(0=int(erf(  (T-e*t)/sqrt(2)  )*t^2*exp(-t/2),t=0..infinity),e=0..1,T=0..10);

Error, (in plots/implicitplot) invalid input: the following extra unknowns were found in the input expression: {t}

The weird thing is that this worked before (took about 10min though) and now it isn't.  Any suggestions?

Thanks

 

Hey

How would i go about modelling the Least Square Fitting Approach in maple?

I am concentrating on a 3x3 to a 5x5 grid rather than infinate.

the formula is

y = C  + Dt

I know the least fitting approach then goes into inversiting the matrix, or something, but i dont understand the math model which is why i want to model it in Maple.

Thanks for any help

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