Re: [PATCH] Double-prec diag and permutation matrices fall back to sparse matrices.

[Jaroslav Hajek]

On Thu, Mar 5, 2009 at 7:55 PM, Jason Riedy <address@hidden> wrote:
> With this change, diag ([1;2;3]) * sprand (3, 3, .5) will produce a
> scaled sparse matrix.  Single-precision sparse matrices are not yet
> supported in Octave, so the single-precision diagonal matrices still
> fall back to dense.

This is, IMHO, an important catch that didn't occur to me before. I
can't say I like it much, although it's logical (given the absence of
single precision sparse matrices). It's no problem for the operations,
actually; (single) full * (double) sparse does not work anyway. But
for other stuff (like assigning to a diag matrix), it seems
potentially confusing.
John, what do you think?

cheers

-- 
RNDr. Jaroslav Hajek
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz