deprecated functions

[John W. Eaton]

On  4-Mar-2009, Jaroslav Hajek wrote:

| > But really I don't care about dmult.  It was a short, relatively clear
| > way to say what I meant.  Having diag * sparse be sparse is much, much
| > better.
| 
| Definitely, if you ignore Matlab, it is. But it's just not that easily
| possible. I recently needed (successfully, I hope) to justify a
| compatibility breakage with much smaller impact,

Maybe I'm slow, but what is the large impact of having diag x sparse
operations convert to full?  What does it break?  I guess I could use
some examples.

jwe