Re: Real Solutions
- To: mathgroup at smc.vnet.net
- Subject: [mg95834] Re: Real Solutions
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Wed, 28 Jan 2009 06:32:04 -0500 (EST)
- Organization: Uni Leipzig
- References: <glmssi$mkr$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
Hi,
in
Solve[x == y, y]
with
{{y -> x}}
is it a real solution ? or not ?
It depend on x right ? and for a symbolic
solution it is impossible to give you the
real only solutions if you don't
provide more information.
And Assuming[], Simplify[], FullSimplify[] and
Refine[] should help.
Regards
Jens
Kowalczyk-Schr=F6der wrote:
> Hi,
> I need only the real solutions from Solve or NSolve. I found a
> complicated way with a lot of "ifs" to get, what I want. Is there an
> easier way to do this? (I don't want to use Reduce.)
> Regards
> J.Schroeder
>