Re: exclusions
- To: mathgroup at smc.vnet.net
- Subject: [mg86359] Re: exclusions
- From: Helen Read <hpr at together.net>
- Date: Sun, 9 Mar 2008 05:03:40 -0500 (EST)
- References: <fqtqp5$db0$1@smc.vnet.net>
- Reply-to: HPR <read at math.uvm.edu>
Jaccard Florian wrote:
> Hello!
>
> Does somebody understand why this works fine :
>
> Plot[Tan[x], {x, 0, Pi},
> Exclusions -> Pi/2,
> ExclusionsStyle -> Red]
>
> (I obtain a red asymptote)
>
> And this doesn't work like I logically expect?
>
> Plot[x/Log[x], {x, 0, 10},
> PlotRange -> {-5, 10},
> Exclusions -> 1,
> ExclusionsStyle -> Red]
>
> (I obtain no asymptote at all)
I don't know why one works and the other does not (I have found
Exclusions to be a little squirrelly sometimes), but the following does
work.
Plot[x/Log[x], {x, 0, 10}, PlotRange -> {-5, 10},
Exclusions -> {x == 1}, ExclusionsStyle -> Red]
--
Helen Read
University of Vermont