Re: x=2;Composition[f,FindMinimum][x+1,{x,a}]
- To: mathgroup at smc.vnet.net
- Subject: [mg68302] Re: x=2;Composition[f,FindMinimum][x+1,{x,a}]
- From: Jean-Marc Gulliet <jeanmarc.gulliet at gmail.com>
- Date: Tue, 1 Aug 2006 06:59:15 -0400 (EDT)
- Organization: The Open University, Milton Keynes, UK
- References: <eake8e$qu9$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Chris Chiasson wrote: > The above command crashes my kernel on Windows XP and Linux. Anybody else? > x = 2; Composition[f, FindMinimum][x + 1, {x, a}] The above one crashes the kernel too. Now, you would not get any result whatsoever, since this is "a" that must be set, not "x". x = 2; Composition[FindMinimum][x + 1, {x, a}] FindMinimum::"srect" : "Value (a) in search specification ({x, a}) is not a number or array of numbers. FindMinimum[x + 1, {x, a}] This works better, a = 2; Composition[f, FindMinimum][x + 1, {x, a}] FindMinimum::"lstol" : "The line search decreased the step size to within tolerance specified by AccuracyGoal and PrecisionGoal but was unable to find a sufficient decrease in the function. You may need more than (MachinePrecision) digits of working precision to meet these tolerances. f[{-1.1012745173913992*^16, {x -> -1.1012745173913992*^16}}] HTH, Jean-Marc