How to plot Bloch sphere on maple?...

If we have an equation for the generalized Bloch sphere i.e.,

\partial_{t}(u^{2} + v^{2} + w^{2}) = 0,

where u, v and w are functions of x and t and the initial conditions u=v=0, w=-1. Then how to plot this equation on maple?

permutation matrix ...

Dear all

I applied the definition of a permutation matrix to a given matrix A to obtain a Tridiagonal Toeplitz matrix, but I haven't any idea why the final result looks strange.

Permutation_matrix.mw

Many thanks

Solution diverge of ode ...

Dear all

Using maple I can't obtain an exact solution, my goal for which initial condition can the solution diverge to infinity if maple can not give us a solution.

special_condition_diverge.mw

many thanks

Laurent series ...

Dear all

I would like to compute a Laurent of a given function at an isolated point.

laurent_series.mw

thanks for your help

tridiagonal linear system ...

Dear all

I would like to solve a linear system A X=b whee A is a matrix n times n

If A is a tri-diagonal matrix, how can we write simple code to make A upper-triangular and then we solve the system using backward substitution

many thanks

I can't remove rootOf...

I am trying to simplify an expression, and leave W in terms of other variables. But unfortunately I can't delete the RootOf, and I can't see the expressions. Could you please help me.

optimization problem postive integer solution ...

Dear all

I have an optimization problem. I would like to add a condition to obtain only a positive integer as the solution to the problem

Positive_integer.mw

thanks

Making a plot with the result of the greatest eige...

 >
 (1)
 > LinearAlgebra:-Eigenvalues( (1) );
 (2)
 >

Maximum of function negative...

Dear all

I hope to find the maximum of a given function or show that the maximum is negative.

negative_maximum.mw

many thanks for your help

mp3 FFmpeg through maple using ssystem...

Since maple doesn't have mp3 support, the best we can do is just convert to a supported file type and go from there.  We can actually use maple's system command to work within maple to accomplish this and other tasks.  Actually someone using Matlab created an FFmpeg tool package - something similar could also be done with Maple.

So first you need to load the free open source FFmpeg software into your machine.  I'm using windows so Unzip into a folder then into right click on mycomputer go into properties advanced and add a new environment variable.

However I'm having a problem using the ssystem command.  The system command actually works fine, so I don't know if it's an issue with my format of the command or maybe it's a bug within the Maple 18 that I'm currently working in (perhaps it works on the newer versions) so here's the script

system("ffmpeg -i c:/test/test.mp3") #works fine outputed in a new window displays info about specified file

ssystem("ffmpeg -i c:/test/test.mp3") #maple is busy sitting executing with nothing happening

However this works,

ssystem("ffmpeg -version") #does output into Maple just information of the ffmpeg software version

so I suspect something to do with the file formatting??  Any ideas why ssystem doesn't output into maple using a file location?

minimize function ...

Dear all

I tried to minimize a function but maple 18 does not return any solution.

minimize(sqrt(1-(4*(x-1))*(1-y)/(x^2*(1+y))), x = 3 .. 4, y = 0 .. 1, location)

thanks for any help

generate matrix from system...

Hi

Is seem that maple change the order of the equation when I convert the system to matrix form

1) Can I kee the same order of the equations proposed in the system in order to get a special matrix form

2) Can I display the vector used in generating matrix maybe the order of unknown is inverted

system.mw

many thanks

plot curve using plot3d...

Dear all

I have a second order partial differential equation.

I addeded some boundary conditions.

I tried to use plot3d for a function u(x,y) but there is no figure displayed.

plot_3d_curve.mw

I use Maple 18

Many thanks for your help