Re: Filling from x_1 to x_2

*To*: mathgroup at smc.vnet.net*Subject*: [mg111992] Re: Filling from x_1 to x_2*From*: Helen Read <hpr at together.net>*Date*: Mon, 23 Aug 2010 02:40:36 -0400 (EDT)*References*: <i4r4an$jtc$1@smc.vnet.net>*Reply-to*: HPR <read at math.uvm.edu>

On 8/22/2010 8:14 AM, Anders wrote: > Hi, > > I'm trying to only fill the area under a function from one x-value > (x_1) to another x-value (x_2) (the purpose is to represent an > integral with the filling) . I'm using the Filling -> Axis option, but > I'm not sure how to limit the x-values. > > Do you guys know anything about this? I would make one plot with no Filling on a larger domain, and another plot with Filling on the interval that you would like filled, then show the plots together. For example: f[x_] = x^3 + x + 5 plot1 = Plot[f[x], {x, -3, 3}]; plot2 = Plot[f[x], {x, 1, 2}, Filling -> 0]; Show[{plot1, plot2}] Sometimes you might need PlotRange->Automatic within Show, and it's also a good idea to include AxesOrigin->{0,0} when you are using Filling->0 or Filling->Axis. -- Helen Read University of Vermont