Re: ?
- To: mathgroup at smc.vnet.net
- Subject: [mg120808] Re: ?
- From: Barrie Stokes <Barrie.Stokes at newcastle.edu.au>
- Date: Thu, 11 Aug 2011 05:11:56 -0400 (EDT)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <201108101047.GAA26230@smc.vnet.net>
Mate: As we say in Australia, RTFM. If you type -> (hyphen, greater than) into the online help, you get plenty of examples concerning Rules. A lot of us do something like: sol = FindRoot[x+9,{x,-5}] rootOfEquation = x/.sol Cheers Barrie >>> On 10/08/2011 at 8:47 pm, in message <201108101047.GAA26230 at smc.vnet.net>, David Kirkby <david.kirkby at onetel.net> wrote: > 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
- References:
- How do I get a numeric value from FindRoot[] ?
- From: David Kirkby <david.kirkby@onetel.net>
- How do I get a numeric value from FindRoot[] ?