behavior of sph2cart() doesn't match matlab (?)

[Ben Abbott]

On Jan 15, 2009, at 8:57 PM, michael tesch wrote:

> GNU Octave, version 3.0.2, on macosx, from 'port'.
>
> I can't actually verify this on the matlab side, but I got code that
> was developed in matlab that did the following:
>
>  for nsp=1:sz
>    [TH,PHI]=cart2sph(xx,yy,zz);
>    [X,Y,Z]=sph2cart(TH,PHI,A);
>    spoke=[X ;Y ;Z];
>  end
>
> Where xx,yy,zz,TH,PHI were all scalars, and A was a 1xN vector.  The
> result was that spoke was a matrix of 3xN.
>
> the Octave implementation of sph2cart() dies with an error about
> mismatched dimensions of parameters.

>

I'm unable to reproduce any problem in the developers sources.

Nothing depends upon "nsp", so why the loop?

TH, PHI should each have same size as xx, yy, & zz. Are you sure A has  
the same size?

To make certain everything is sized/shaped correctly, try inserting  
the line below after cart2sph

	whos xx yy zz TH PHI

Ben