“The power to understand and predict the quantities of the world should not be restricted to those with a freakish knack for manipulating abstract symbols.” Bret Victor, “Kill Math” f=Math; e=document.body.children[$=0]; G="globalCompositeOperation"; Q=.43; P=.05; with(e){ with(style)width=(w=innerWidth-9)+"px", height=(h=innerHeight-25)+"px"; W=(width=w/=2)/2; H=(height=h/=2)/2; g=getContext("2d"