http://qs1969.pair.com?node_id=586938

Melly has asked for the wisdom of the Perl Monks concerning the following question:

Hi,
The following script works on Win32 (produces a crude mandelbrot), but fails on Linux (produces zeroes only).

I've put the output under the readmore, but here's the code... (oh, and I should add that this is the end result of some golf, hence no strict, etc.)

map{ $a=1-$_/10; map{ $d=$a; $e=$b=$_/20-2; map{ ($d,$e)=(2*$d*$e+$a,$e**2-$d**2+$b); $c=$d**2+$e**2>4?_:0 }1..99; print$c }0..59; print$/ }0..20;

Win32 Output:

________________________________________0___________________
____________________________________________________________
____________________________________0000____________________
____________________________________0000____________________
______________________________0__0000000000_________________
______________________________00000000000000000_____________
____________________________0000000000000000000_____________
___________________________000000000000000000000____________
_________________0000000__0000000000000000000000____________
________________000000000_0000000000000000000000____________
0000000000000000000000000000000000000000000000______________
________________000000000_0000000000000000000000____________
_________________0000000__0000000000000000000000____________
___________________________000000000000000000000____________
____________________________0000000000000000000_____________
______________________________00000000000000000_____________
______________________________0__0000000000_________________
____________________________________0000____________________
____________________________________0000____________________
____________________________________________________________
________________________________________0___________________

Linux:

000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
000000000000000000000000000000000000000000000000000000000000
map{$a=1-$_/10;map{$d=$a;$e=$b=$_/20-2;map{($d,$e)=(2*$d*$e+$a,$e** 2-$d**2+$b);$c=$d**2+$e**2>4?_:0}1..99;print$c}0..59;print$/}0..20;
Tom Melly, pm@tomandlu.co.uk