[Octave-bug-tracker] [bug #60924] DNAUPD did not find any eigenvalues to sufficient accuracy

[Rik]

Follow-up Comment #11, bug #60924 (project octave):

As I mentioned in comment #2, using a function handle is unusual, but allowed
syntax.  Users would choose to use a function when it is easier to describe
the effects of


A * x


via a program rather than a matrix itself.  In this case, where
rows=columns=1024, the matrix would take 8.3 MB as a dense array.  Instead, it
takes up just the memory of a function handle which is quite small.


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