RE:How to get a positive solution from Solve Command
- To: mathgroup at smc.vnet.net
- Subject: [mg67806] RE:How to get a positive solution from Solve Command
- From: abdou.oumaima at hotmail.com
- Date: Sat, 8 Jul 2006 04:56:22 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
I find this solution but doesn't suit me well,
f[ξ_] := Normal[Series[1 - c ArcTanh[ξ]/ξ, {ξ, 0, 2}]]
Select[ξ /. Solve[f[ξ] == 0, ξ], # > 0 &]
the output is {} it gives me anything!
Is there any solution for that? :-(