Hi All,

I want to create a MapleSim Custom Component which has a vector input and the output is a matrix. In this case how can I define the system (Dynamic system sys:=DynamicSystems[?])? Hence, how can I assign these input/output to component ports?

Thanks

I have a problem with animations using a density plot as background.

The density plot covers the animation.

Here is an example:

plt:=densityplot(-(x^2+y^2),x=-1..1,y=-1..1);
animate(plot,[[sin(r)*cos(t),sin(r)*sin(t),t=0..2*Pi],thickness=10],r=0..Pi,background=plt);

Can this be solved? 

Best regards

  anthei 

This equation lost a root x = -88?

equation.mw

Hi,

I am trying to create a do loop to generate y values from a series of vectors containing the x's. In the end, I will be exporting this data to Excel, so I want to put it into a Vector.

My problem is that sometimes I have 11 x's and sometimes I only have 9 x's.

observed := rtable(1 .. 2, 1 .. 3)

for k from 1 to 2 do 

for j from 1 to 3 do 

observed[k][j] := evalf(subs(HK[1] = C1[k, 1...

I am trying to compute commutator like this [d_t +J_x,d_x+J_t], where d_t and d_x are differential operators, J_x and J_t, which contains generators of group, are some currents on group manifold. terms like this [J_x,J_t] could sovled by physics package, but how to manipulate [d_t,J_x]? How to define operator d_t in order to make the commutator works? and if it works we might have another problem as [d_t,J_x]=[d_t, J^a_x*T_a], where T_a are generators, the result is T_a *d_t(J^a_x...

Hi guys,

I am fairly new to Maple so please go easy on me!

I have seen the Mathieu equation in my chemistry book regarding quadrupole mass spectrometer. I want to know how I can use Maple to solve the equation and to plot a 'stability diagram'?

The equation is seen here (in this link):

I have Maple 12. I am trying find integer partition of 20 into size 5 each. This can be accomplished in mathematica, using the command of 

IntegerPartitions[20,{5}]

Maple does have Partition command but there is no way to use that command to produce an output of size n partition.

For example Partition(20,5) results in partitions of 20 with 5 being the largest integer. That is not what I want. I need to...

I recently purchased maple 15 and I'm using it on my desktop computer. I would like to also have it on my laptop so I can use it at school as well. Is there any way, that I can use the same code on both of my computers or I have to uninstall from one and install it on the other?

All helps are appriciated :) Thanks

How do i solve a simple trigonometric equation? For example sin(2*x) = -sqrt(3)/2.

I am unable to find where the problem is within a plot. Here is the error message: Error, (in plot) incorrect first argument [(k-1)*r*(cos(t)+cos(k-1)*t/(k-1)), (k-1)*r*(sin*t-sin(k-1)*t/(k-1)), t = 1 .. 1, r = 1 .. 1, k = 3 .. 3]

Is there a symbol or something that i am supposed to be looking for in the error message so i know where the error is occuring?

Here is an interesting problem I've pondered every now and then. 

One is lost in a desolate winter landscape with 3 blankets (thin, 2x thin and 3x thin thicknesses).  He can construct a shelter like a teepee with the blankets.  How could he best arrange the blankets to stay the warmest?  I'm sure everyone puts the thickest blanket on top when they make their beds, so would that not the optimal order?  Layer the outside teepee with the thickest...

How to draw slope field associated to differential equation: dy/dt = sin(ty) on Maple software?

I know I can use try catch but why doesn't this work?

is(tan((1/2)*Pi) = "Error, (in tan) numeric exception: division by zero")
Error, (in tan) numeric exception: division by zero

It is a string value error that should be true in the test shouldn't it?   

Hi,

I asked a similar question some time ago : http://www.mapleprimes.com/questions/123925-Shortcut-Key-AltShiftF6.

I'm still on Maple 13, and I still have not found a way to switch between tabs/windows using the keyboard.I am in the one Maple session (ie I haven't started a new one).

I tried all suggested combinations, including all combinations of Ctrl, Alt and Shift...

Hi,

A simple question. How do you echo 2+2 to the output without Maple calculating it and putting 4 in the output ?

thanks,
Andrew