Function tests pass for order 4 at tolerance 1e-10
Function tests pass for order 4 derivatives at tolerance 1e-10
Interpolation tests FAIL for order 4 at tolerance 1e-10 error 0.0172359
Interpolation tests FAIL for order 4 derivatives at tolerance 1e-10 error 0.729542
Injection tests pass for order 4 at tolerance 1e-10
Injection tests pass for order 4 derivatives at tolerance 1e-10