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Re: extract from Reduce
Posted:
Apr 4, 2013 10:30 PM


a := x == 3  x == 4  x == 7
x /. {a // ToRules}
{3, 4, 7}
a := x == 6
x /. {a // ToRules}
{6}
Bob Hanlon
On Wed, Apr 3, 2013 at 10:50 PM, <hamiltoncycle@gmail.com> wrote:
> I have a result from the command Reduce that looks like this (as an > example): > > a:= x==3x==4x==7 > > I need to extract the numbers but I can't find a nice way to handle the > case when there is only one equation, for instance: > > a:= x==6 > > currently I check what the head of the expression is (Head[a]) and handle > the case Head[a]=Or with a Map[] and the case Head[a]="Equal" with a[[2]]. > Not very nice, but I guess that there is a neat way to do it. > > cheers, Robert > >



