Maple Questions and Posts

These are Posts and Questions associated with the product, Maple

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

Test.mw

If I use a binary {0,1} linear program the cardinal constraint ie control the
number of 1's (long positions in portfolio) works beautiful. See attached worksheet.

The problem starts when I convert the problem into a constrained integer {-1,0,1}
linear problem where -1= short position, 0=no position and 1=long position.

In the first example when we add the constraint  add(w[i], i = 1 .. NC) = 4

Dear friends,

 

I have to generate several pages of tables with numbers (using the option Matrix in Maple) and to write them in Latex.

Is there some option to be able to include  titles of the tables, names of the columns, notes on the bottom of the pages?

 

I saw some question like this in mapleprimes, but it was time ago that I wonder that now maybe the Latex Output of Maple has improved.

 

Thanks for your attention,

Hey folks I'm trying to solve equations using isolve for which I want conditions on my two variables x and y. I would like them to be both positive and x>y. The problem I'm having with isolve now is that I can't manipulate the output I get. Perhaps there is a way to do this but I can't see how yet. It would produce something like {x = 1, y = 2} for example and I can't extract the numerical values from it (at least using [] operators). I currently don't have access to maple...

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.

1.For win 8, does there exist an arm version maple in future?

2.Will it possible to use gpu acceleration for symbolic computation in maple?

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

Would much value shared experience or solutions on this

Thanks

How to solve a set or a system of differential equations in maple for motion with Schwarzchild metric?

 

************** Schwarzchild metric *****************
with(tensor):
coord := [t, r, theta, Phi]:

g_compts:=array(symmetric,sparse,1..4,1..4):

g_compts[1,1]:=1 - 2*G*M/(r*c^2):
g_compts[2,2]:=-(1 - 2*G*M/(r*c^2))^(-1):
g_compts[3,3]:=-r^2:
g_compts[4,4]:=-(r^2)*sin(theta)^2:

g1 := create([-1,-1], eval(g_compts)):

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.

I am a retired physicist persuing independent mathematical research and don't fit into any of Maplesoft's four user catagories.

I am trying to develop a new finite element method for incompressible fluid dynamics in 3D. I must derive four vector functions which are mapped into the 84 degrees-of-freedom of the finite element. I expand each of the four functions in terms of multinomials with 192 unknown coefficients to be determined. I apply essential constraints to each...

I entered

animate(plot,[s*cos(Pi/2*(1-t)),s*sin(Pi/2*(1-t)),s=0..1],t=0..1);

and received the error

Error, (in plots/animate) unexpected options: [s*sin(.5000000000*Pi), s = 0 .. 1]

This is to draw a radial line beginning at 12 o'clock and ending at 3 o'clock.

I could get it to work as

animate(plot,[tan(Pi/2*(1-t))*x,x=0..1,view=[0..1,0..1]],t=0..1);

though.  But the length of the line is not fixed as I require.

I can solve a [0,1] linear programming problem by using:

LPSolve(Ob, con, assume = binary);


I managed to solve [-1,1] linear programming problem by using the transformation
2*w[i]-1 ie   2*0-1=-1 and 2*1-1=1 as follows:

LPSolve(add(PP[i]*(2*w[i]-1), i = 1 .. NC)-add(Draw[i]*(2*w[i]-1), i = 1 .. NC), {add(w[i], i = 1 .. NC) = PS}, maximize = true, assume = binary);


Now my question is how can I solve a [-1,0,1] problem?
I tried to use:

Hi,

I'm quite new to maple and I'm not really sure how to go about fitting a curve to my data, I have inputed the data by doing;

data := [[1,3],[2,3].........[2,7]]

and then plotted it using a point plot. Now i know I need to fit a resonance curve using LSsolve but I dont know how to go about using that command. Could anyone please enlighten me.

 

Thank you

> restart;
> Fax := 1493/2;
                                    1493
                                    ----

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