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Re: LogLogPlot encounters Infinite expression

  • To: mathgroup at smc.vnet.net
  • Subject: [mg126168] Re: LogLogPlot encounters Infinite expression
  • From: "Dr. Wolfgang Hintze" <weh at snafu.de>
  • Date: Sun, 22 Apr 2012 06:07:43 -0400 (EDT)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <jmtdbf$sj1$1@smc.vnet.net>

On 21 Apr., 06:33, John_V <jvillar.j... at gmail.com> wrote:
> If I try this:
>
> f[x_] = Piecewise[{{0, x < 10}}, Exp[x/20]]
> LogLogPlot[1/f[x], {x, 11, 20}]
>
> the result is an error message (Infinite expression 1/0 encountered) and a
> plot that has axes but no graph.
>
> Notice that although 1/f is indeed 1/0 for x<10, the requested plot range
> does not include x<10. The function is well-defined within the requested
> plot range. Does anyone know what's going on with this?
>
> John
>
>

P
If I prepend the command

In[1]:=
<< "Graphics`Graphics`"

everything works out fine in version 5.2

Regards,
Wolfgang




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