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Re: change the base of the Log[] used by LogLogPlot?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg112943] Re: change the base of the Log[] used by LogLogPlot?
  • From: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>
  • Date: Thu, 7 Oct 2010 03:36:07 -0400 (EDT)
  • References: <i8h7nb$che$1@smc.vnet.net>

Hi Nasser,

LogLogPlot sets up axes as log base 10. I don't know where you've
learned that it's base e, but it's not true.

However, If you are going to plot additional graphics, e.g. by using
Epilog, you will notice that those coordinates have to be log base e
to arrive at the desired location. For example:

LogLogPlot[x, {x, .1, 1}, Epilog -> Point[{Log[E, 0.5], Log[E, 0.5]}]]

Cheers -- Sjoerd

On Oct 6, 9:15 am, "Nasser M. Abbasi" <n... at 12000.org> wrote:
> Mathematica experts:
>
> I want to use LogLogPlot, say as in LogLogPlot[x,{x,.1,1}], but I want
> the Log to be in base 10, not in base e as the default used.
>
> Looking at the doc, I can't see it. No option to change the base.
>
> I can ofcourse build my own data, and use ListPlot, but LogLogPlot
> handles the ticks better automatically and it samples better. Same
> question applies for LogPlot, LogLinearPlot, ListLogPlot,
> ListLogLinearPlot, etc...
>
> I am sure this is hidden somewhere in the documentation :)
>
> Version 7.0
>
> thanks,
>
> --Nasser



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