cases: 168
max |rust - ref| over all cases: 1.110e-16
worst case: (17, 'f_ties', 2, (-0.5477355977355978, -0.6550650738150738), (-0.5477355977355978, -0.6550650738150737))
mirror identities (r -> -r gives (-S,-L)) hold on every case for both sides
PASS
