[nycbug-talk] nifty(1)

[Marc Spitzer]

that is cool

marc

On Thu, Dec 15, 2011 at 1:00 AM, Eitan Adler <lists at eitanadler.com> wrote:
> This is a fun one:
>
> % function try_this_in_zsh {
>  local lines columns colour a b p q i pnew
>  ((columns=COLUMNS-1, lines=LINES-1, colour=0))
>  for ((b=-1.5; b<=1.5; b+=3.0/lines)) do
>  for ((a=-2.0; a<=1; a+=3.0/columns)) do
>  for ((p=0.0, q=0.0, i=0; p*p+q*q < 4 && i < 32; i++)) do
>  ((pnew=p*p-q*q+a, q=2*p*q+b, p=pnew))
>  done
>  ((colour=(i/4)%8))
>  echo -n "\\e[4${colour}m "
>  done
>  echo
>  done
>  }
> --
> Eitan Adler
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> talk at lists.nycbug.org
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