Re: Anyone used the Notation package in v6 already?

*To*: mathgroup at smc.vnet.net*Subject*: [mg77295] Re: Anyone used the Notation package in v6 already?*From*: Donald DuBois <dfd01 at comcast.net>*Date*: Wed, 6 Jun 2007 07:19:37 -0400 (EDT)

Hello, lst = {{1, 0}, {1, 1}, {2, x + x^2 + x^4}, {2, 1 + x + x^2 + x^4}, {4, x + x^2}, {4, 1 + x + x^2} ... } First /@ lst // Tally will produce {{1, 2}, {2, 2}, {4, 10}, {5, 8}, {8, 10}} which is the number of 1's, 2's, 4's etc. as the first element of the sublists. In a little less cryptic form, Tally[Map[First , lst]] Will accomplish the same thing. Regards, Don