Function tests pass for order 3 at tolerance 1e-10
Function tests pass for order 3 derivatives at tolerance 1e-10
Interpolation tests FAIL for order 3 at tolerance 1e-10 error 0.0602477
Interpolation tests FAIL for order 3 derivatives at tolerance 1e-10 error 2.32472
Interpolation tests FAIL for order 3 at tolerance 1e-10 error 0.0973466
Interpolation tests FAIL for order 3 derivatives at tolerance 1e-10 error 1.77855