http://qs321.pair.com?node_id=619048

Proporzione Divina, by fellow mathematician blazar, was the inspiration for this.  (In fact I mentioned here that I'd be doing an obfuscation, or "Offuscamento", based on the Golden Ratio; this is the fulfilment of that intent).

The original version (with recursive, inscribed golden rectangles) was fairly well "golfed" down, but wasn't visually stimulating enough, so I added the spirals.  They really spiced up the output, but significantly increased the total character count.  Oh, well...

The program needs Tk to work.  Ironically, one feature of the program was created by "accident" -- I forgot the Tk switch to createArc to change the arc's color, and guessed at -fill.  That wasn't it, but the resulting effect was quite pleasing, so I left it in.

$_='us!b{lJ$++$ ;= A8 1;0 P@(=(\x$0 =,)( \y $0=,)(\X$ 9=06,) (\ Y$$ =/X $ (=p .11 608 43) ) ;)H@( =, 0,0*2Y$2 ,$* , YX $0, 2, 627,33$,, XY$ 5,601,04$ ,,Y Y$8 ,37 3,3 1$,,Y63,7 67, 63 5, 93 7,3 6 3,726 ,67 4,3 37, 354 , 366,7 83,786,05 4,3 27,01 4,286,0 2 4,0 07,544, 507 ,024,08 6,4 34, 507 ,0 34,296 ,02 4)3 s} buR!r{na!d52}6us!b{rpsirtn"f%#20%x20%x20"xR, R,R ,u} es T!;kM$ n=w eM! iaW nniod;w ;lM $>- ere pta9(,9us{b fi0 (== f$+ +3% )2$ {&V$&-Vp>ca Fk roe g;t;lV$$ =-MC >na av(s w-, iX$- ,eh $,)Y >-a pkc$ }=u {$P$0[}](+{$ P$2[}]$-${[P ]0 )}$/;p V$ >-rca eeto Pylo g(nx$$,, yx$$ ,,Y X$$ ,,YX$$ ,,yf-, i)r $;-Mu> dpt a;e es el tc $(, aa$ $,, a2. ;){ $P$0[} ]$= ;uuphsP@s ,ih tfP @@; =Q$( %J)2 (?f -,i)r(:o-t uil enw,ihe t;)V$> -rc aee trA (cR @-, tsr a, tA $= -09 @,) Qhw li( e=0 $=% f61na@ d=R psi lec @(, H,0 )4} );) aMni oLp o';s* \s**xgs;s? !?$ "?xg#070603 ;;s&(.) (.) &$2$1&xg ;eval# liverpole

(Thanks to blazar for teaching me the Italian word for "obfuscation".)


s''(q.S:$/9=(T1';s;(..)(..);$..=substr+crypt($1,$2),2,3;eg;print$..$/