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Re: Parse results from Solve


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



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