Re: Parse results from Solve

*To*: mathgroup at smc.vnet.net*Subject*: [mg73908] Re: Parse results from Solve*From*: "Norbert Marxer" <marxer at mec.li>*Date*: Sat, 3 Mar 2007 00:55:34 -0500 (EST)*References*: <es916i$2u2$1@smc.vnet.net>

On 2 Mrz., 12:18, nikki_74 <namratashe... at rediffmail.com> wrote: > I have used the Solve command to get the solutions for a system of equations. However I want to use these solutions in other commands, such as Reduce and Simplify. > > For instance, say the output of Solve is, > sols= {{x->0,y->0},{x->1,y->2}} > > and I want all solutions where x!=y , or , all solutions where y>1. > > Can anybody help with this? Thanks! Hello You can use sols = {{x -> 0, y -> 0}, {x -> 1, y -> 2}}; Cases[sols, {x -> xv_, y -> yv_} /; xv != yv] Cases[sols, {x -> xv_, y -> yv_} /; yv > 1] Best Regards Norbert Marxer