Re: Problem with Mathematica driving me nuts

*To*: mathgroup at smc.vnet.net*Subject*: [mg46817] Re: Problem with Mathematica driving me nuts*From*: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>*Date*: Tue, 9 Mar 2004 04:31:04 -0500 (EST)*Organization*: Universitaet Leipzig*References*: <c2he1m$ahd$1@smc.vnet.net>*Reply-to*: kuska at informatik.uni-leipzig.de*Sender*: owner-wri-mathgroup at wolfram.com

Hi, FindRoot[x^2 == 4x - 4, {x, 1}, AccuracyGoal -> 16, MaxIterations -> 30] ?? Regards Jens "benwoodward.com" wrote: > > FindRoot[x^2 == 4x - 4, {x, 1}] > > Out[4]= > {x -> 1.99902} > > In[15]:= > FindRoot[x^2 - 4*x + 4, {x, 3}] > > Out[15]= > {x -> 2.00098} > > When the root is clearly two. > Is Mathematica using Newton's Method like a Ti-92? > Even if so, why wont it give a more accurate answer? > I've tried N[%,30] but it doesn't do anything. > I'm new to Mathematica coming over from a Ti-92, so everything is > frustrating right now. > Thanks.