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Re: Q on SparseArray representation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg113995] Re: Q on SparseArray representation
  • From: kj <no.email at please.post>
  • Date: Sat, 20 Nov 2010 06:12:37 -0500 (EST)
  • References: <ic5oqu$73u$1@smc.vnet.net>

In <ic5oqu$73u$1 at smc.vnet.net> Oliver Ruebenkoenig <ruebenko at wolfram.com> writes:

>{{0, 1, 3, 4, 8}, {{3}, {4}, {1}, {4}, {4}, {1}, {3}, {2}}}

>The first row has 1-0 entries in column 3 (i.e. 8) The second row has 3-1 
>entries in columns 4 and 1 (i.e. 9 and 6), the next row, 3, has 4-3 
>entries in column 4, ie. 2 and so on...

>What the 1 stands for, I can't remember.


Cool.

Mysteries remain (that leading 1!), but your explanation clarifies
a lot.

Thanks!

~kj


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