Re: Can I solve this system of nonlinear equations?
- To: mathgroup at smc.vnet.net
- Subject: [mg125257] Re: Can I solve this system of nonlinear equations?
- From: "Stephen Luttrell" <steve at _removemefirst_stephenluttrell.com>
- Date: Fri, 2 Mar 2012 07:50:48 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <jil5ld$rrm$1@smc.vnet.net>
On further investigation is see that in the objective function approach
NMinimize[obj, {a, b, c, d, e, f, g, h}]
NMinimize[obj, {a, b, c, d, e, f, g, h}, Method -> "DifferentialEvolution"]
NMinimize[obj, {a, b, c, d, e, f, g, h}, Method -> "SimulatedAnnealing"]
give radically different, but equally good, solutions to the equations.
So, the solution space is not 0-dimensional (i.e. a single point), and more
work is needed to characterise it. Over to you!
--
Stephen Luttrell
West Malvern, UK