Re: [Gnuplot-info] Gnuplot doesn't show me the right x-axis intersection of a function

[Jefferson S. E. P. <st...@gm...>]

Hi Luigi,

to what Dieter Jurzitza already said I only add that you'll see better
your intersection with the x-axis if you adjust the range of the plot,
for example:
  set xrange [0:10]
  set xrange [0:10]
  plot -0.9+9.638*x**(-1.394) w l lw 2
With the default ranges all you'll see is indeed that divergence of
your function as x->0.

Cheers,
Jefferson


On Sat, Aug 18, 2012 at 11:06 PM, Luigi <dri...@li...> wrote:
> Hi. I was trying to plot the following function:
>
> -0.9+9.638x^(-1.394)
>
> by using the command
>
> plot y=-0.9+9.638x**(-1.394)
>
> The problem is that the intersection with the x-axis (y=0) should be at
> around x=5.47, but the function's plot just approaches y=0 as an asymptote.
>
> When I try to plot it with Maxima, the intersection is correct.
>
> Is there something wrong in the syntax of the command? Thanks.
>
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