Mandala after Peoples Computer Company (JS/HTML Canvas)

640x480 Canvas for rendering Mandala
x = 0.0, y = 0.0
click in pane to move

blue, white, red
               
Mandala equation: z = cos 3r * cos 4θ


Jeffrey S. Miller, April 2019
Thanks/Credit to JS and Canvas tutorials and docs on https://developer.mozilla.org/!