Has anyone gotten Wigner Rotation to work in Maple. My implementation based on a formula derived in Edmonds, which is equivalent to whatever is on wikipedia, just isn't working. And I don't know where the problem lies. I know for sure that my z axis rotaition works. But I guess my Y-axis rotation is failing for some reason. I'm sure that it matches the formula. I do a Z-Y-Z rotation, so the resulting rotation matrix is real. 

Ideas? Thanks fo any help you can provide!

Hi All,

I've made an array plot of 5 plot3D objects, and I would like to export the entire set of plots to a single GIF/JPEG image. Presently, I am exporting the worksheet to an html file, for convenience. My hope is to avoid exporting each plot individually and merging them later in gimp. It should be doable, especially if the html export does so implicitly?....Anyway, got ideas?

Thanks! ~A

Hi All,

Is using the NAG package the right way to go about creating the delaunay triangulation of a set of points in 3 dimensions. My points all lie on a surface in R^3.

Thanks. 

Hi All,

Recently I upgraded to Maple 14 from Maple 13, and I've encountered a strange behavior in Maple 14 that doesn't appear in Maple 13. By the definition of Spherical harmonic functions in Maple,  

SphericalY(2*l, -2*l, theta, phi) = SphericalY(2*l, 2*l, theta, phi).

And this is true in Maple 13, however not Maple 14. Can you reproduce this behavior in Maple 14? Or have I done something else that might be causing this?

Thank you for any help you can provide.

Hi,

I have a vector of points which sample the graph of a spherical function, say f. My definition for the graph of a spherical function is :

points[k] = f(x_k) * x_k     where  x_k \in S^2   .

Right now I use pointplot3d to obtain a rough visualization of my function. However, I'd like a plot that looks like a solid surface, the way plot3d output can look. 

Any ideas?

Thanks for any help!