Re: Tricky visualization of maximization problem

*To*: mathgroup at smc.vnet.net*Subject*: [mg71006] Re: [mg71004] Tricky visualization of maximization problem*From*: "Chris Chiasson" <chris at chiasson.name>*Date*: Sat, 4 Nov 2006 23:06:59 -0500 (EST)*References*: <200611040908.EAA25130@smc.vnet.net>

David Park's DrawGraphics package, which costs a nominal fee, can help you do exactly what you want. I wrote some messy code that uses the package in this way, which you can see here: http://chris.chiasson.name/Engineering_Optimization/appendix.hw5.Sequential_Unconstrained_Minimization.html#fig.hw5.problem_5-4_constrained_objective_function http://chris.chiasson.name/Engineering_Optimization/chapter.hw3.Linear_Programming.html I'll eventually revise it, but I'm sure you wanted an answer yesterday. Maybe he will write you personally. On 11/4/06, Uwe Ziegenhagen <newsgroup at ziegenhagen.info> wrote: > Hi, > > I want to maximize > > x1^2 + 4*x1*x2 + 3*x2^2 (eq.1) > > under the constraint > > x1^2 + x2^2 == 1 (eq. 2) > > So far no problem, Maximize gives me 2 + sqrt(5) > > But how can I display this visually? > > For eq. 1 I can use Plot3D[], for eq. 2 ImplicitPlot[] but how to have > them in one picture? > > > Thanks in advance, > > > Uwe > > -- http://chris.chiasson.name/

**References**:**Tricky visualization of maximization problem***From:*Uwe Ziegenhagen <newsgroup@ziegenhagen.info>