Re: is there a better way to do constraint logic programming in Mathematica?

*To*: mathgroup at smc.vnet.net*Subject*: [mg80845] Re: is there a better way to do constraint logic programming in Mathematica?*From*: "Dana DeLouis" <dana.del at gmail.com>*Date*: Tue, 4 Sep 2007 03:41:43 -0400 (EDT)

Just another idea: v=Array[x,5]; equ={ Tr[v]==22, Less@@v, First[v]>=1, Last[v]<=10 }; v/.FindInstance[equ,v,Integers,100]; (* or *) v/. ToRules /@ List @@ Reduce[equ,v,Integers]; -- HTH :>) Dana DeLouis 6.0, but 5.2 Help files & 4.0 Book "sdw" <warwick at jps.net> wrote in message news:fbar15$qft$1 at smc.twtelecom.net... > > simplified constraint programming example in Mathematica: > > find a set of numbers that add to a particular value - numbers cannot be > the same > > note huge timing problem as we go up in variables > > Above 5, it hung... <snip>