Julia set: Difference between revisions

=={{header|Easyprog.online}}==

[https://easyprog.online/ide/run.html?code=floatvars%0Acx%20%3D%20-0.7%0Acy%20%3D%200.27015%0Afor%20y%25%20range%20300%0Afor%20x%25%20range%20300%0Aiter%25%20%3D%200%0Azx%20%3D%20%28x%25%20-%20150%29%20/%20100%0Azy%20%3D%20%28y%25%20-%20150%29%20/%20150%0Awhile%20zx%20%2A%20zx%20%2B%20zy%20%2A%20zy%20%3C%204%20and%20iter%25%20%3C%20128%0Ah%20%3D%20zx%20%2A%20zx%20-%20zy%20%2A%20zy%20%2B%20cx%0Azy%20%3D%202%20%2A%20zx%20%2A%20zy%20%2B%20cy%0Azx%20%3D%20h%0Aiter%25%20%2B%3D%201%0A.%0Aif%20iter%25%20%3D%20128%0Acolor_red%200%0Aelse%0Acolor_red%20iter%25%20/%2016%0A.%0Amove%20x%25%20/%203%20y%25%20/%203%0Arect%200.4%200.4%0A.%0A. Run it]

<lang>floatvars

cx = -0.7

cy = 0.27015

for y% range 300

for x% range 300

iter% = 0

zx = (x% - 150) / 100

zy = (y% - 150) / 150

while zx * zx + zy * zy < 4 and iter% < 128

h = zx * zx - zy * zy + cx

zy = 2 * zx * zy + cy

zx = h

iter% += 1

.

if iter% = 128

color_red 0

else

color_red iter% / 16

.

move x% / 3 y% / 3

rect 0.4 0.4

.

.</lang>