Re: Select Output of FindMinimum

*To*: mathgroup at smc.vnet.net*Subject*: [mg25708] Re: [mg25658] Select Output of FindMinimum*From*: Tomas Garza <tgarza01 at prodigy.net.mx>*Date*: Thu, 19 Oct 2000 04:35:33 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

FindMinimum returns a list of the form {fmin, {x->xmin}}, where fmin is the minimum value of f found, and xmin is the value of x for which it is found (Help Browser). The only thing is that xmin is given in the form of a "rule". So, if you want to extract the value of xmin, proceed as in the following example: In[1]:= FindMinimum[Sin[x], {x, 1}] Out[1]= {-1., {x -> -1.5708}} In[2]:= x = x /. x -> -1.5708 Out[2]= -1.5708 Now x has the value you want: In[3]:= x Out[3]= -1.5708 Alternatively: In[4]:= FindMinimum[Sin[x], {x, 1}][[2, 1, 2]] Out[4]= -1.5708 To see why, look at FullForm. Tomas Garza Mexico City "Philipp Gunz" <gunz at treangeli.at> wrote: > Im having troubles selecting the output of the FindMinimum-Function: > > minimize = > FindMinimum[(neupunkte[[1]] - splinespec[u]).(neupunkte[[1]] - > splinespec[u]), {u, 0.0001, splinespec[[2, 2]]}, Compiled -> True] > > OUT: {0.00138329, {u -> 1.88935}} > > What I need for further calculations is the value of u ... and I don't know > how to extract that information.