> How should I calculate [the following] for my sparse matrix?
> Bigarr =: a1 =/ a2.
Well, I would've advised you to first make a1 and a2 sparse themselves,
i.e.:
a1 =/&:$. a2.
But, when I tried some experiments:
a1 =. i. 4000
a2 =. 60e3 $ 78
$ a1 =/ a2
4000 60000
sa1 =. $. a1
sa2 =. $. a2
$ sa1 =/ sa2
|non-unique sparse elements: scriptd
| $sa1 =/sa2
|[-7] c:\app\dev\lang\j\601c\temp\13.ijs
Which looks like a bug (to me), and is reducible to :
=/~ $. , 1
|non-unique sparse elements
| =/~$.,1
-Dan
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