Re: Problem with RegionFunction

*To*: mathgroup at smc.vnet.net*Subject*: [mg88056] Re: Problem with RegionFunction*From*: "Fred Klingener" <gigabitbucket at gmail.com>*Date*: Wed, 23 Apr 2008 04:07:59 -0400 (EDT)*References*: <fukern$s4l$1@smc.vnet.net>*Reply-to*: "Fred Klingener" <gigabitbucket at gmail.com>

"zac" <replicatorzed at gmail.com> wrote in message news:fukern$s4l$1 at smc.vnet.net... > Dear Group, > > any idea what is the problem with the output of this Manipulate? > > Manipulate[ > Plot3D[Sin[x]*Cos[y],{x,1,10},{y,2,10},RegionFunction->Function[{x,y}, > 45<=(y^x)]] > ,{dummy,{True,False}}] The error I get (in XP, 6.0.1) relates to the 0^0 in the RegionFunction specification. Try: Manipulate[ Plot3D[Sin[x]*Cos[y], {x, 1, 10}, {y, 2, 10}, RegionFunction -> Function[{x, y} , x >= 1 && y >= 2 && 45 <= (y^x) ]], {dummy, {True, False}}] Hth, Fred Klingener