Function tests pass for order 3 at tolerance 1e-10
Function tests pass for order 3 derivatives at tolerance 1e-10
Interpolation tests pass for order 3 at tolerance 1e-10
Interpolation tests pass for order 3 derivatives at tolerance 1e-10
Interpolation tests FAIL for order 3 at tolerance 1e-10 error 0.105215
Interpolation tests FAIL for order 3 derivatives at tolerance 1e-10 error 1.86978