Re: Plotting with logarithmic scale?

*To*: mathgroup at smc.vnet.net*Subject*: [mg36554] Re: Plotting with logarithmic scale?*From*: "David W. Cantrell" <DWCantrell at sigmaxi.org>*Date*: Wed, 11 Sep 2002 13:27:39 -0400 (EDT)*Organization*: NewsReader.Com Subscriber*References*: <almrps$4mh$1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

"DrBob" <drbob at bigfoot.com> wrote: > 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]; The graph itself is indeed what is desired, but the labelling of the x-axis is then incorrect for a logarithmic scale. For example, regardless of the scale used, any proper graph must show that the first minimum occurs at x = Pi. But the method you suggest makes it seem that it occurs at approx. 1.14 (precisely Log[Pi]). David > -----Original Message----- > From: Soxos [mailto:soxos at libero.it] To: mathgroup at smc.vnet.net > Subject: [mg36554] Plotting with logarithmic scale? > > How can I plot (2d) functions using a logarithmic scale for the X-axis?