(vpow 
.(x pos) 
.(x 
..(length 
...(theta 
....(vif 
.....(v+ 
......(checker 
.......(vpow [2.7906 -2.5724] [2.3901 -2.2837 2.6399]) 
.......(t [2.9727 -2.847])) 
......(lightness-from-rgb [2.0085 -2.5502])) 
.....(turbulate 
......(gradient 
.......(red-from-hsl 
........(vabs [-0.5082 -2.5314 -2.8842 -1.6423]))) 
......(vfrac 
.......(length 
........(y pos)))) 
.....(normalize 
......(polar 
.......(sigmoid 
........(v- [2.009 2.1293 -2.6559] [-1.5562 2.3485 1.404])))))))))