: d dup ; : m 1 min ; : f d floor - ; : c cos abs ; : j t 4 + 2 * x 8 * floor 8 / + 4 * c 2 / t 4 + 2 / c 4 ** * - ; : a 1 x x 8 * floor 0.5 + 8 / - d * y ; : b - d * + sqrt 50 * 8 ** ; : p x t 4 + pi / f 1.6 * - 0.2 + ; : v t 4 + pi 2 * / f ; a j 0.5 b - v d 0.5 < * 4 * m * 1 p d * y 0.5 - d * + 36 * 30 ** m - y 0.5 - p atan2 abs t 10 * c 0.8 * - 16 * m * 0 max a 0.5 b - 0 max d p 16 * < * + p d * y 0.58 b m * v 0.5 >= * + d 0.2

: y0 y 1.6 * .45 - ; : d dup ; : c rot d >r ; : l c c c >r swap >r over * over d r> * swap r> * 4 + d * swap d * + over d * + 7 - swap 1 + min + r> r> r> ; 0 x 1.7 * .85 - d d * y0 d * + 4 + sqrt d d >r >r / y0 r> / -2 t 6.2 + 9 / sin 2 / + r> / l l l l l l l l l l l l l l l l drop drop drop 3.7 / d d * over sqrt -rot

: c push negate swap negate y x z+ dup * swap dup * + pop dup * < ; : l push -rot negate swap negate y x z+ 2dup dup * swap dup * + pop dup * < push atan2 - abs 0.05 < pop * ; : p dup rot dup sin swap cos rot * -rot * rot + -rot + swap ; : a t 3 * sin ; : b a 1.1 * ; : m x 10 * + + sin 1 over dup * - sqrt atan2 swap / y 0.6 - > ; 0.5 0.7 -1.57 0.3 l 0.5 0.4 -1.57 a + 0.15 l + 0.5 0.4 -1.57 a + 0.15 p -2 b + 0.2 l + 0.5 0.4 -1.57 a - 0.15 l + 0.5 0.4 -1.57 a - 0.15 p -2 b - 0.2 l + 0.5 0.6 -1.57 a + 0.1 l + 0.5 0.6 -1.57 a + 0.1 p -0.5 b + 0.1 l + 0.5 0.6 -1.57 a - 0.1 l + 0.5 0.6 -1.57 a - 0.1 p -0.5 b - 0.1 l + 0.5 0.7 0.05 c + dup 0 swap 15 1 t 2 / m 20 3 t m + 25 0 t 4 / m 35 4 t 4 / m + + y 0.2 > * +

\ use WASD keys : b button ; : d dup ; 2 b dt * 200 / d 1 @ sin * swap 1 @ cos * 4 @ 5 @ z+ 5 ! 4 ! 2 @ 3 @ 4 @ 5 @ z+ 3 ! 2 ! 2 @ x + .5 - 3 @ y + .5 - 5 b dt * 3 * 1 b dt * 3 * - 1 @ + d d 1 ! cos swap sin z* 2dup .05 + atan2 abs .4 < -rot .01 - atan2 abs 1 < - 0 max 6 @ sin dt * 2 * 7 @ + 7 ! 6 @ cos dt * 2 * 8 @ + 8 ! 3 b d d if 1 @ 6 ! then if 2 @ 7 ! then if 3 @ 8 ! then 7 @ .5 x - - d * 8 @ .5 y - - d * + .00003 < + x y ** 56 * sin 237 * d floor - 1000 * 999 - 0 max + d d

: scale 3 * 1.5 - ; : c -.11 .6557 ; : julia 2dup z* c z+ ; x scale y scale julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia

: scale 3 * 1.5 - ; : c -.11 .6557 ; : julia 2dup z* c z+ ; x scale y scale julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia-set Redux kliemann '20 Sep 01

: scale 3 * 1.5 - ; : c 0 1 ; : julia 2dup z* c z+ ; x scale y scale julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia

: scale 3 * 1.5 - ; : c 0 1 ; : julia 2dup z* c z+ ; x scale y scale julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia julia-set kliemann '20 Sep 01