From: Alan Third <alan@idiocy.org>
To: zsh-users@sunsite.dk
Subject: Re: do I win the "most pointless use of ZSH" award? ;)
Date: Mon, 30 Apr 2001 21:05:17 +0100 [thread overview]
Message-ID: <20010430210517.A4840@idiocy.org> (raw)
In-Reply-To: <20010430124125.A2527@pianosa.catch22.org>; from dbt@meat.net on Mon, Apr 30, 2001 at 12:41:25PM -0700
On Mon, Apr 30, 2001 at 12:41:25PM -0700, David Terrell wrote:
> www.meat.net/~dbt/zsh-overkill2.png
>
> time says:
> ./bin/mandelbrot.zsh 65983.75s user 2255.87s system 31% cpu 59:51:22.92 total
> % echo $LINES $COLUMNS
> 360 1000
Hi, just for what it's worth, with the help of Bart Schaefer I've
managed to optimise the code a bit! It also looks a bit more
interesting whilst it's drawing than before... :)
#!/bin/zsh
((columns=COLUMNS-1, lines=LINES))
((colour=0))
for ((b=-1.5;b<=1.5;b+=3.0/lines));do
for ((a=-2.0;a<=1;a+=3.0/columns));do
for (( p=0.0, q=0.0, i=0 ; p*p+q*q < 4 && i < 32 ; i++));do
((pnew=p*p-q*q+a, q=2*p*q+b, p=pnew))
done
((colour=(i/4)%8))
echo -n "\\e[4${colour}m "
done
done
--
Alan Third
next prev parent reply other threads:[~2001-04-30 20:05 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-27 20:31 Alan Third
2001-04-27 20:52 ` Clint Adams
2001-04-30 19:41 ` David Terrell
2001-04-30 20:05 ` Alan Third [this message]
2001-04-30 20:23 ` Geoff Raye
2001-04-30 20:38 ` Alan Third
2001-04-30 22:19 ` Bart Schaefer
2001-04-30 22:15 ` Bart Schaefer
2001-05-02 17:30 ` Alan Third
2001-05-02 22:26 ` Bruce Stephens
2001-05-02 22:56 ` Bart Schaefer
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