acos

🎨 3D 预览 — 反余弦

@StartRule
Lot --> Arc(10)

Arc(n) -->
  case n == 0 : NIL
  else        : primitiveCube(0.4, 0.4, 0.4)
                  t(acos(n / 10) * 4, 0, asin(n / 10) * 4)
                  Arc(n - 1)