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MathGroup Archive 2002

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RE: Plotting with logarithmic scale?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg36534] RE: [mg36519] Plotting with logarithmic scale?
  • From: "DrBob" <drbob at bigfoot.com>
  • Date: Wed, 11 Sep 2002 03:27:57 -0400 (EDT)
  • Reply-to: <drbob at bigfoot.com>
  • Sender: owner-wri-mathgroup at wolfram.com

This graphs f from 0 to 8 Pi on a logarithmic horizontal scale:

f[x_] := 1 + Abs[Sin[x]/x]
Plot[f@Exp@x, {x, 0, Log[8Pi]}, PlotRange -> All];

If you want both scales to be logarithmic, use

Plot[Log@f@Exp@x, {x, 0, Log[8Pi]}, PlotRange -> All];

The first is always possible if you only have positive x to deal with,
and the second is possible if x and y are BOTH positive.

Bobby Treat

-----Original Message-----
From: Soxos [mailto:soxos at libero.it] 
To: mathgroup at smc.vnet.net
Subject: [mg36534] [mg36519] Plotting with logarithmic scale?


How can I plot (2d) functions using a logarithmic scale for the X-axis?

Thanks







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