Function tests pass for order 1 at tolerance 1e-10
Function tests pass for order 1 derivatives at tolerance 1e-10
Interpolation tests FAIL for order 1 at tolerance 1e-10 error 0.0230535
Interpolation tests FAIL for order 1 derivatives at tolerance 1e-10 error 0.934353
Interpolation tests FAIL for order 1 at tolerance 1e-10 error 0.0281754
Interpolation tests FAIL for order 1 derivatives at tolerance 1e-10 error 0.472339