MaplePrimes Questions

Search Questions:

Latest Questions Latest Questions Feed

During a spam attack, like mapleprimes is seeing now, all of the posts are all out of whack.

Once these spam posts are deleted the posts and questions keep the same wrong order.  I am suggesting that once a post or question has been cleaned of these spam posts that the question/post revert to it's previous proper position in the order of the date on the last posted action. 

Perhaps this is already being looked at? 

One more suggestion. ...

Hi everyone,

I am having trouble determining how to obtain the area under the curve of a "complex" dsolve graph, as an example:

> restart;
> with(plots);
> g := diff(S(t), t) = t^2;
> q := diff(R(t), t) = t;
> ode1 := dsolve([g, S(0) = 1, q, R(0) = 1], [S(t), R(t)], numeric, events = [[t = 600, S(t) = 10^7], [t = 800, S(t) = 5*10^7]]);
> odeplot(ode1, [t, S(t)+R(t), color = blue, thickness = 2], 0 .. 1000, numpoints = 1000);...

Hi

I am attempting to do a least squares regression with two variable (HK and S) generating my curve.  The equations are extremely tempermental and won't allow maple to solve them using normal methods, so I'm resorting to numerical methods to minimize the least squares.

I am attempting to create a dataset that I can search for the minimum of "k" and have it tell me what "i" and "j" values I used to get there.  The code below is the basic idea, the...

Dear all,

I come up with a problem. When I execute the following commands in 2d mode, error occurs:

restart; with(MTM); with(plots); r := .125; omega := .3; l := 1; m := 4.5; IG := (1/2)*m*r^2; A := Matrix(4, 4, {(1, 1) = 0, (1, 2) = 0, (1, 3) = 1, (1, 4) = 0, (2, 1) = 0, (2, 2) = 0, (2, 3) = 0, (2, 4) = 1, (3, 1) = 0, (3, 2) = r*omega^2*(IG+m*r*(r+l))/(l*IG), (3, 3) = -2*ldt/l, (3, 4) = 0, (4, 1) = 0, (4, 2) = -r*omega^2*(IG+m*(r+l)^2)/(l*IG), (4, 3) = 2*ldt/l, (4, 4...

I have a file  g:/temp.mw
From a seperate maple worksheet I want to modify the Document Property `Author` to  "aname" in the file g:/temp.mw

One could simply ...
open the worksheet g:/temp.mw  and
with(DocumentTools):
SetDocumentProperty(`Author` , "aname"):

That's okay, but how to change it remotely?  I don't know if it's even possible.  I was trying ...

fd:=fopen(`g:/temp.mw`,WRITE):
fprintf(fd,SetDocumentProperty(`Author`,"aname"))...

Example:

implicitplot(x^2 + y^2 = 1, x=-2..2,y=-2..2)

This command produces a plot with the range x = -1..1, y = -1..1 instead of what I specified.

 

I don't remember this being a problem on the older editions of Maple. 

I need to use Krylov functions widely in my project. They are recurrent functions as follows:

Can I make Maple operate with these functions?

Thanks.

Curiously I find myself guilty of never filling out the document properties fields. Author, Keywords, Subject and Title. I have also noticed that no one else, or at least a majority of maple users don't bother with this although I haven't found anyone who actually does fill these fields out, just browse the applications in the application center. What other usefullness do these attribute field placeholders have? Seeing that no one makes use of them, it doesn't seem that...


hello dear community

I want to know what is the meaning of 1/2 RootOf(2_z2-1, Label=L1) since I need exat solution for this system

thanks in advance

I am attempting to combine the sum of two sinusoids having the same frequency in Maple (e.g. A*cos(10*x) + B*sin(10*x + Pi/3) = M*cos(10*x + phi) )

The long way through this is to break each term up into cartesian components and add them (x = A + B*cos(Pi/3 + 3*Pi/2) , y = B*sin(Pi/3 + 3*Pi/2) ). Following the summation, they can be converted back to polar (M = sqrt( x^2 + y^2 ) and phi = arctan(y/x)).

This is a long process for me and if my graphing calculator...

Hi there,

I am currently working on an ODE model with a diffusion term and I have to analyse it analytically (if possible) with Maple12.

With the dsolve function I have a solution but based on BesselJ and BesselY functions.

My questions are:

  • Do you know if it's possible to have a solution without these functions?
  • When I add the IBCs conditions, the system is inconsistent, do you understand why?

Hi there,

I am currently working on an ODE model with a diffusion term and I have to analyse it analytically (if possible) with Maple12.

With the dsolve function I have a solution but based on BesselJ and BesselY functions.

My questions are:

  • Do you know if it's possible to have a solution without these functions?
  • When I add the IBCs conditions, the system is inconsistent, do you understand why?

If I search for something in mapleprimes then click on one of the selections, mapleprimes brings me to a page of many posts and does not bring me to the proper single post I expect to see.  In fact the post or question I selected does not even exist in the next page mapleprimes sends me to.

Hi I'm having trouble generating the mandlebrot set using maple... i only have a very basic knowledge of this programme.
>plot3d([-2, 0.7], [0.7, 3] orientation = [-90,0], grid = [250,250], style = patchnogrid, scaling = constrained, colour = mandelbrot);

The above code is giving me trouble, it keeps coming up with an error missing operator or ';'
I don't see anything wrong with it though....

First 787 788 789 790 791 792 793 Last Page 789 of 1337