Re: [Gnuplot-info] drifting of floor function

[seb_kramm <seb...@ya...>]

On 10/02/2012 07:52 PM, Hans-Bernhard Bröker wrote:
> Except that it isn't.  An even number of points can be just as correct.  The actual
> trick lies in the combination of the underlying function's periodicity, the ordinate
> range, and the number of samples: you want to have a sampling distance that is an
> integer fraction of the signal's period, i.e.
>      function_period / (range_max - range_min) * (samples - 1)
> should be an integer.  E.g.
>      set samples 100
>      plot [0:9] x-floor(x)
> matches your expectations just fine, because 1.0/9.0*99 = 11.0

You are absolutely right, thanks for these clarifications. I indeed assumed that one 
would always want to plot on an even range, which can't always be the case.

Regards,