Hello!

How can I make MAPLE to create the solution of the following system?

https://math.stackexchange.com/questions/301068/how-do-you-find-a-corresponding-recurrence-relation-for-some-random-algorithm/301709

according to this link, how to parse or walk through the algorithm in maple to generate recurrence relation formula?

I have a differential equation involving several functions of the following form:

diff(h,z) = iAf + iBg,

where h, f and g are functions of the Cartesian coordinates x, y and R and the third coordinate corresponds to z = R for some fixed constant value R.  The derivative is then with respect to the coordinate z and A and B are constants, with i the usual imaginary unit.  Is there some way this equation could be solved explicitly with Maple?

Basically it spits out the subset of values for which a division by zero error will occur for the function you specify on  range you specify for each of it's arguments, but I get an ambigous error when ever exponentiation features in the function I specify, which of course dramatically reduces the application of the calculator. Division,addition,substraction and multiplication are currently the only available arithmetic operators availble for the function window that I know the error will not occur.

If some one can help it is much appriciated

DIVISION_BY_ZERO_CALCULATOR.mw

hello everyone,
   INGT.mw
 

Download INGT.mw
 

Download INGT.mw

I'm trying to calculate a triple integral complicated by a procedure that changes each time a variable xi, while the program takes a lot of time and it gives me the message "Warning, computation interrupted". If anyone can help me I will be very happy

Is there something I should be doing whenever I use simplify to avoid things like this, or should I stop using the "is" function all together?

 

Download main.mw

Hello people :) 

As the captian says, im trying to remove an old task i've made.
But i get this:

Error in Get, invalid object [_XML_reply_data_get("reference" =
"_Maplets_reference_12","parameter" =
"value",_XML_content("Task,UserTasks,Nyops",&Entity "#xc3",&Enity
"#xa6","tning"))]

And i have no idea what it is, but it won't erase my task :'D

Thanks a bunch in advance! 

Have a great weekend you all
Best regards Lucas :)

Hi 

I was wondering someone could help me with something.

Basically I've got a function of f(x,z) that I have plotted which comes from an integration that was taken over a large number of small steps. I have been able to plot this function to determine a Potential Field as a function of x and z. (No Problems so far)

However the next step that I want to be able to do is compute a field form this potential. apologies for my lack of knowing how to input into here as I am fairly new to this. To do this I have:

Field = - Nabla * Potential 

Again no problem, I can plot a gradient field from it which is great using the gradplot command. I beleive this comes as a result of the following:

gradplot = [diff(f,x), diff(f,z)]

HOWEVER I want to be able to plot a Field Strength plot (In essence a Gradient Field Strength) where it takes the magnitude of the vectors at each point. Firstly am I correct in saying that this should be:

Magnitude Field = |F| = sqrt( Fx^2+Fz^2)      where Fx is diff(f,x) and Fz is diff(f,z)

However when I try to compute this, it takes an age to evaluate and doesn't seem to make much progress. I think this may come as a result of computing square roots of large numbers/large decimal places? I was wondering whether there is any command that anyones knows of that would calculate Gradient Field Strength/Magnitude that may solve this issue? Or even who to just compute this Square root?

A few seconds after calling up Help starts zucking araound and the whole computer then freezes. Ctrl-Alt-Delete doesn't work, hard reset required. Very funny. Am I alone?

Hi good afternoon , im looking for maple code of HPM to solve time dependent diffusion reaction , can anybody help me . I didnt get how to solve it by maple . 

Hello

I know that anames( 'user' ) recovers the contents of the workspace but I wonder whether it would be possible to recover only the contents of each m-file read within a worksheet.  

Many thanks

Ed

My maplet

mpt := Maplet(Window("Точка выше или ниже прямой",
[[Plotter[f]()], ["1st vector"],
[TextField[v1](), TextField[v2](), TextField[v5]()],
["2nd vector"],
[TextField[v3](), TextField[v4](), TextField[v6]()], ["Скаляр"],
[TextField[scalar]()], [Button("Add", Evaluate(f = 'work(1)'))],
[[ToggleButton['d2']("2D", 'value' = true, 'group' = 'BG1')],
[ToggleButton['d3']("3D", 'value' = false, 'group' = 'BG1')]]]),
ButtonGroup['BG1']())

Now I choose via toogle button what to plot 2D or 3D addition but I need to plot it in two different plotter, is there a way to do it?

Procedure 

with(Maplets);
with(Elements);
with(Tools);
[AddAttribute, AddContent, Get, ListBoxSplit, Parse, Print, Set, 

  SetTimeout, StartEngine, StopEngine]
with(plots);
with(LinearAlgebra);
with(Student[LinearAlgebra]);

with(Maplets[Elements]);

work:=proc(g)

     local x1, y1, x2, y2, scalar;z1, z2,d2,d3,u,v,U,V,r1,r2,r3,R1,R2,R3,V1:
 x1 := Get(v1::algebraic);
 y1 := Get(v2::algebraic);  

z1 := Get(v5::algebraic);  

x2 := Get(v3::algebraic);  

y2 := Get(v4::algebraic);  

z2 := Get(v6::algebraic);  

scalar := Get(scalar::algebraic);

 d2:= Get(d2);  

d3:= Get(d3);    

 if d2 = true then  u, v:=<x1, y1>, <x2, y2>;  

elif d3 = true then   u, v:=<x1, y1,z1>, <x2, y2,z2>;  

end if;  U:=arrow(u, color=red):  

V:=arrow(u, v, color=black):    

   r1:=u+v: r2:=u-v: r3:=ScalarMultiply(u,scalar):r4:=ScalarMultiply(v,scalar):  

R1:=arrow(r1, color=red):

 R2:=arrow(v, r2, color=black):  

R3:=arrow(r3, color=black):

 R4:=arrow(r4, color=black):  

V1:=arrow(v, color=blue):    

if g = 1 then return VectorSumPlot(u,v, show=1, caption="Треугольник", vectorcolors=[red,blue]);    

end if;  

end proc:

Repeat once again what do I need: I want to plot addition of vectors in 2D and 3D in 2 different plotters at once

how to convert a function to transition matrix?

how to convert a differential system to transition matrix?

Does global optimization toolbox has randomization option it gives same value every time