Re: weird behavior when plotting multiple functions in 6.0

*To*: mathgroup at smc.vnet.net*Subject*: [mg76081] Re: weird behavior when plotting multiple functions in 6.0*From*: dh <dh at metrohm.ch>*Date*: Wed, 16 May 2007 05:21:43 -0400 (EDT)*References*: <f2btov$iga$1@smc.vnet.net>

Hi Roman, simply tell mathematica to evaluate f[x] before sendig it to Plot: Plot[Evaluate[f[x]],{x,0,4*Pi}] hope this helps, Daniel Roman wrote: > Hello all: > > When I plot > Plot[{Sin[x], Cos[x]}, {x, 0, 4*Pi}] > I get two curves: one blue, one red. > > But when I do > f[x_] = {Sin[x], Cos[x]}; > Plot[f[x], {x, 0, 4*Pi}] > both curves are blue. It is as if at some level Mathematica does not > understand that I'm actually plotting two curves at a time, and uses > the first color specification (blue) for both curves. > > This is particularly annoying when you want to play with plot styles, > for example filling instructions, like > Filling -> {1 -> -1, 2 -> 1} > which works in the first example but not in the second one. > > Has anyone figured out a workaround for this one? > > Thanks! > Roman. > >