Hi all,

I have those functions

M:=n->piecewise(And(n::integer,(n/p)::odd),((4*Br)/(mu0*Pi*(n/p)))*sin((Pi/2)*(n/p)),0);

W:=(n,r)->piecewise(And(n::integer,(n/p)::odd),(M(n)*r)/(mu1*(1-n^2)),0);

u1:=(r,theta)->sum((r^n*AI[n]+r^(-n)*BI[n]+W(n,r)*sin(n*theta0))*sin(n*theta)+(r^n*CI[n]+r^(-n)*DI[n]+W(n,r)*cos(n*theta0))*cos(n*theta),n = 1 .. nn);

diff(u1(r,theta),r);

Error, (in type/polynom) too many levels of recursion

I would like to use Maple to visualize some data produced by a computational geometry application I am working on.  However, my coordinate system is different than a standard cartesian system.  In my case, the positive Y direction is downward.

Can I re-orient the Y axis on a point plot to go downwards instead of upwards?

Hello,

Is there a way to export a file from Maple so that somebody without Maple can use ? My project is a dynamic one with components that need to be used by the "Reader".

Thanks,

Yaad

First a little background: I am using Maple 14 on a Windows 64 bit machine.

I first imported some x,y data using the readdata function. Then I made a Spline function from this data like so: f :=x->Spline(data,x);

Then I created a second function, lets call it g(z) which calls f like so: g:=z->f(1/z);

If I simply try to evaluate g(z) at a point it works. But if I try to plot g(z), like so: plot(g(z), z=5..7) I get the error: Error, (in CurveFitting:-Spline...

Hi,

I have those questions:

1) set

When I write these inputs,

x:={1,3,2}; y:={b,a,d,c}; z:={a[1],a[1,1],b[0],d[0],c[0],a[0],2};

the results are x := {1, 2, 3}, y := {a, b, c, d}, z := {2, a[0], a[1], a[1,1], b[0], c[0], d[0]}

Is there a way to get what I input

2) This problem in ordering numbers and words is verry important and hard when solving a large system of equations with:

restart:with(SolveTools): eqns:=[a[0...

I'm currently implementing the Poker test to determine whether a binary sequence possesses some specific characteristics that a truly random sequence would be likely to exhibit.

Maple can't solve the inequation `assuming`([solve(floor(160/m)>=5*2^m,[m])],[m::posint]);

However, `assuming`([solve((160/m)>=5*2^m,[m])],[m::posint]); works.

Is there a way to rewrite...

Hi friends,

I have this piecewise function:

restart:assume(n,integer):h := piecewise(n::odd, n^2, n^3);

I can not get explicitly the derivative:

diff(h,n);

But, with

restart:h1 := piecewise(And(n::integer, n::odd), n^2, n^3);

I can get the derivative explicitly:

diff(h1,n);

Why ?

Thanks in advance

I have this question to answer but I have no clue whatsoever what to do. I'm a first year student so this Maple stuff is all pretty much new to me. Can't seem to figure out what "det" is. 

For the matrices A = Matrix([[2,-1,1],[3,1,-1],[0,2,2]]) and B =  Matrix([[2,1,5],[4,3,8],[0,-1,0]]) verify that det(A . B) = det(A) det(B)

How do I do this?

Hi all,

I have a large system of equations in matrix form A x = b (A and b are constituated with numbers)

The rank of the matrice A is 1524 by 1524

How to solve numerically the system with maple. I searched in maple help and mapleprimes questions but I have not got answer.

If maple has a limitation in solving large system of equation numerically,

Is it possible to export the matrices A and b in matlab and solve the system in matlab and...

Hello! Anybody can help my to have this problem?

A^2+3*A+Delta*I = 0;

I want calculate 'a' and 'b' whit 'x' and 'y', and it's my code:

++++++++++++++++

But this is wrong, but I dont know...

Thank you!!!!

(sorry for my English)

Can I  upload a worksheet in MapleCloud with some security code that allow the person just read the worksheet and not download/save in their own computer? Is there a option in MapleCloud like this or any worksheet in MapleCloud can be viewed and save?

Thanks Washington Inácio

Hi everybody,

I have a little problem with Maple 14.01:

I would like to export a figure created with plot3d as an eps file. I do so by simply right-clicking on the figure and than on export -> encapsulated postscript. The problem: it does not work properly:

With Maple 12, I get a 2mb large vector graphic. If I export the same figure under Maple 14.01, the file is only 148kb large und not a vector graphic - when I open it with Inkscape, it just looks like an ordinary jpg-picture.

I have 8 equations (eq1, eq2, eq3, eq4, eq5, eq6, eq7 and eq8) with 8 varibles A1[n], A2[n], C1[n], C2[n], B2[n], A[k,i], D2[n], A[0,i] and where n=1..nn, k=1..nk, i=1..Q

I have some difficulties to get the matrix form AX=b

Thanks in advance for any help

I attached my maple code

piers.mws

Hi. I wanted to figure out how to plot a boundary value problem in Maple. It is a nonlinear, fourth order ordinary differential equation with four boundary conditions. The BVP has the form (d⁴/dt⁴)-3(d²/dt²)(d/dt)=0, with boundary conditions x(0)=0, x(1)=60, (d/dt)(x)(0)=0, and (d/dt)(x)(1)=0. Thanks.

E.g. how do I say "x conditional on w" in Maple. The following doesn't evaluate:

x|w

Error, unable to match delimiters

or:

mu[x|w]=sum(v[i],i=1..n)*f(v[i]|w);

Error, `|` unexpected

Thanks