Re: max. value in a plot?
- To: mathgroup at smc.vnet.net
- Subject: [mg97468] Re: [mg97422] max. value in a plot?
- From: "David Park" <djmpark at comcast.net>
- Date: Sat, 14 Mar 2009 05:34:33 -0500 (EST)
- References: <13010531.1236938053810.JavaMail.root@m02>
f[x_, y_] = (6 15)/(10^6 ((x + 0)^2 + (y + 0)^2 + (0 - 0.005)^2)) Maximize[{f[x, y], -0.05 <= x <= 0.05, -0.05 <= y <= 0.05}, {x, y}] // Chop {3.6, {x -> 0, y -> 0}} Minimize[{f[x, y], -0.05 <= x <= 0.05, -0.05 <= y <= 0.05}, {x, y}] // Chop {0.0179104, {x -> 0.05, y -> 0.05}} Plot3D[f[x, y], {x, -0.05, 0.05}, {y, -0.05, {0.05}}, PlotRange -> {0.0179104, 3.6}] David Park djmpark at comcast.net http://home.comcast.net/~djmpark/ From: Oliver [mailto:sch_oliver2000 at yahoo.de] Hallo, i have 2 small questions. how can i find the max. Value of the following Plot? Plot3D[ (6*15*(10^-6))/((x - 0)^2 + (y - 0)^2 + (0 - 0.005)^2), {x, -0.05, 0.05}, {y, -0.05, 0.05}] and how can i plot the range ONLY from the min to the max value? thanks in Advance