Not an an SDF sadly. @henryseg, do you have an implicit definition f(w,x,y,z)=0 around that is equivalent to your parametric version? I can try making A(t) a function of z, see how far I can go. But you've probably been there already.
The Māori descend from Polynesians whose ancestors emigrated from Taiwan to Melanesia between 3000-1000 BCE, then travelled east, reaching the Society Islands 1000 CE. After a pause of 200-300 years they discovered and settled New Zealand. https://t.co/08LPslhUYapic.twitter.com/OFkoE4FKhM