How do I get a numeric value from FindRoot[] ?
- To: mathgroup at smc.vnet.net
- Subject: [mg120794] How do I get a numeric value from FindRoot[] ?
- From: David Kirkby <david.kirkby at onetel.net>
- Date: Wed, 10 Aug 2011 06:47:21 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
The output of FindRoot[] when trying to find a root is like: {x -> 0.49454545} How can I convert that list, into the number 0.49454545? In[1]:= FindRoot[x+9,{x,-5}] Out[1]= {x -> -9.} In[2]:= Head[%] Out[2]= List I can't seem to find any "normal" operations on the list which give me the number. Dave
- Follow-Ups:
- Re: ?
- From: Murray Eisenberg <murray@math.umass.edu>
- Re: ?
- From: Barrie Stokes <Barrie.Stokes@newcastle.edu.au>
- Re: ?
- From: Richard Hofler <rhofler@bus.ucf.edu>
- Re: ?
- From: DrMajorBob <btreat1@austin.rr.com>
- Re: ?
- From: "Harvey P. Dale" <hpd1@nyu.edu>
- Re: ?
- From: Tomas Garza <tgarza10@msn.com>
- Re: ?
- From: Jacopo Bertolotti <jacopo.bertolotti@gmail.com>
- Re: ?
- From: Arturo Amador <arturo.amador@ntnu.no>
- Re: ?