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