trials 1078 max rel err floater vs 3pt 1.863178693672059e-14 max linear precision err 2.4552312978479334e-16 max |Pitot| (even n) 1.1102230246251565e-16
Lambda_4 identity max rel err 1.096621486225946e-12
tangential polygon identity + K(x) membership, max err 1.5708132672194722e-13
