Hey, 

I am trying to write a single procedure to find the root of any function using the Newton-Raphson method, given the initial approximation and the tolerance. If this fails to converge, the program must then use the Bisection method to find the root. Need some help please. The current procedure i have done is only coming out with the first Iteration 

Thanks for the help!

how to singularize existing function?

any group theory can describe the singularity function?

Good day, please how can one solve these BVPs using FINITE DIFFERENCE METHOD in maple. Here is the problem FDM.mw

I have some questions about Mobius Project:

1. What is the license of the worksheets posted on Mobius Project's website?
   I can not find any information about the license of the materials submitted to the Mobius Project.
   Is my worksheets are protected by intellectual property laws and copyrighted by me?
   Or it is freely available for any use for everyone?
2. What are the terms of use of Mobius Project and its service? I can not find it anywhere.
3. What is the copyright for http://mobius.maplesoft.com/?
   I do not see any copyright in the footer of the site or elsewhere.
   So, no copyrights mean the materials/resources on this website can be freely copied/used by anyone?

Hello everyone,

I came across an image/photo and thought, It will be fun to try it in maple.

Except plotting a few triangles and circles, I couldn't make it. 

Here is the image. 

Have a look please.

Cheers!

Hello,
I'm working on coupled differential equation.
The first system is : 
y₁''+y₁'+y₁=q₁
q₁''+e(q₁²-1)q₁'+q₁=y₁"

And the second one : 
y₂''+y₂'+y₂=q₂
q₂''(t)+e(q₂²-1)q₂'(t)+q₂(t) = y₂"+f(P) q₁(t-tau)

This is a parametric system, f(P) and tau(P) are given function of the parameters P.
e is a constant

I have solved the first system with dsolve (using numeric option).
But when I try to solve the second one (with dsolve, numeric, setting P as a parameter), maple returns an error : 

"Error, (in dsolve/numeric/process_input) input system must be an ODE system, got independent variables {t, t-1}"

I think Maple doesn't like " q1(t-tau)".
I have tried to create a new function q where :
q(t)=q1(t-tau)
But Maple returns the same error.

How can I fix it ?

Thanks for reading

EDIT : I have read there is no function in maple that solve delay differential equation.
But this is not a true DDE because q₂ has no effect on q₁. 
So I hope there is a way to "fool" maple and still use dsolve.

EDIT 2 :
I have found how to make it works.
I was using dsolve with the option compile (which increase (a lot) the efficiency of computation).
I delete this option and that's working.
Nevertheless, without the option compile, the computation is very very slow.
MapleHelp recommands to combine the 2 systems for more efficiency. But, when I combine, maple return the previous error.
How can I make it quicker ?

Here is the code : 

test_2_cylindre_sans_compile.mw 

hello,

i have unistalled maple, now i have to give the license server name and the purchase code to reactivate it, how can i do?? where i can find them?

someone can help me?!

I'm currently using maple for calculations of robot kinematics.

My problem is that if i run my worksheet twice  Maple stops showing my results and starts to show e.g. _rtable 18446744074374081822 instead. How can i avoid this behaviour?

(I have a restart command in the beginning of my worksheet)

EDIT'

It seems that the strange behaviour doesent always happen when i run the worksheet twice.

Sometimes i need to run it three times or sometimes i just have to wait for a period of time and run it again. Restarting maple (Closing and reopening the program) fixes the problem every time.

I dont change any parameters between runs.

Normal behaviour 

Strange behaviour

My worksheet if you want to take a look at it Final.mw

I am making something for my math prof as a token of appreciation. It is a spiral slide rule designed to fit in a watch face, but it can be made bigger. I threw together a program to show what I mean:

https://www.khanacademy.org/cs/spiral-slide-rule/5831476045152256

I was told that maple can be used to create things like this, but since I am new to the software, I really don't know how to put something like this together. The best I could do was to make a spiral in polar coordinates, and plot my lists of points on top of it. However, this does not annotate the points and I can't make nice looking lines (the only point options in polarplot are stars, crosses, and other things that aren't what Im looking for).

Does anyone know how I could model this, and then export it as a format where I might be able to send to a printer to get it printed on specialty paper?

Thank you very much

EDIT: I uploaded my plot here, in case you want to see it:

http://randomwrites.wikispaces.com/file/view/mediumspiral1.bmp/508315780/mediumspiral1.bmp

In order to make worksheets more interactive in a teaching environment I have begun playing around with the Tables the standard GUI provides. The idea is that in the left column is the script we are working through while in the right column is space a student can work with the equations and formulae from the left side to, e.g., plot, change parameters etc. without affecting the script too much.

To build the tables I copy-pasted code from a normal worksheet (in document mode) into the left column, creating rows of appropriate length to have a logically coherent section in one row. Usually one row is one Section (in the technical sense of Maple Sections). The student gets to play in the right column.

In principle this seems to work quite well in my preliminary testing. I did find out rather quickly that on the right side one needs to be in 1-d input mode with a prompt for anything to be calculated interactively. Ok, actually probably easier to do. The table is set to evaluate by row so the right-left correspondence is preserved.

A potential issue I am facing however is with equation numbering: I use equation numbers extensively to reference back to upstream results. In the Table, it appears that equation numbers are not unique; in each row of the Table, eq. numbers start as (1.1), (1.2) etc. I am able to reference back to results from a prior row, even though the same equation number will show up again later in the new row. But I am concerned that eventually this all ends up in a big mess and my references point to the wrong expression or equation. Non-unique line numbers seem like a Really Bad Idea, and I'd like to avoid that if possible.

Does anyone know how the lines numbers work for code in Tables and how I make sure they are unique? I suppose I could explicitly assign results I need in other rows to names, but that does not prevent a reference to an eq. number from pulling in the wrong one from a prior row (assuming for the moment that Maple will never look forward to resolve a reference).

Thanks,

Mac Dude

Can someone help me to solve system of equations please. I have a system of 8 complex valued equations, with 8 unknowns: _C1,_C2........_C8

Equation system looks like:

eq_system:={ -3.248046797 10 _C1 + 1.773373463 10 _C2 + (2.182313824 10 - 9.987524076 10 I) _C3 + 1.773373463 10 _C4 = -7.389056097 10 _C2- 7.389056097 10 _C4+ (4.161468365 10 + 9.092974265 10 I)_C3,

............}  its only 1st equation, others are similar.

It looks rather simple though I am not able to solve it with solve or fsolve commands. What I'm doing wrong?

solve(eq_system,{_C1,_C2,_C3,_C4,_C5,_C6,_C7,_C8});

I'm trying to interpolate values using spline (data,x,degrees=2).

So I'm setting curvefit:=spline(data,x,degrees=2);

fsolve(curvefit=4,x);

However, I'm trying to solve this over a range of values in matrix M:=1..2000;

I'm sifting through the online documentation, but I can't find a proper way to do this. Ideally, i'd want to store the results as a seperate matrix.

Hi,

I have a code compute some function : 

         alpha1:(n, m,1) -> (n + 1) (int(K(|m h - y|), y = n h .. (n + 1) h))

              int(K(|m h - y|) y, y = n h .. (n + 1) h)
            - -----------------------------------------
                                  h                    
         alpha2:  (n, m,2) -> -n (int(K(|m h - y|), y = n h .. (n + 1) h))

                int(K(|m h - y|) y, y = n h .. (n + 1) h)
              + -----------------------------------------
                                    h                    
and  I have a Matrix "MatA" .

My aim, when I give the value of the Kernel K used in alpha1, and alpha2, like K(x,y)=ln|x-y| , I want a numerci Matrix.

How can I do it.

Many thinks.

Fred.mw

How do I find the constants in a solution containing whittaker functions?

the boundary conditions are:

c(x,0)=1

c(0,y)=1

[c'(1,y),x]=0