Re: solve and Abs
- To: mathgroup at smc.vnet.net
- Subject: [mg69398] Re: solve and Abs
- From: Peter Pein <petsie at dordos.net>
- Date: Sun, 10 Sep 2006 07:20:40 -0400 (EDT)
- References: <edtrmv$le6$1@smc.vnet.net>
Richard J. Fateman schrieb:
> Is there a reason (in 5.1) for Solve[x-Abs[x]==0,x] to return {{}}?
> This supposedly means all variables can have all possible values.
>
> Reduce does better.
>
Oops, I should have read further...
Help says
"Solve gives {{}} if all variables can have all possible values."
I would consider this a bug, not a feature.
Sorry for overhasty posting,
Peter