Function tests pass for order 0 at tolerance 1e-10
Function tests pass for order 0 derivatives at tolerance 1e-10
Interpolation tests pass for order 0 at tolerance 1e-10
Interpolation tests pass for order 0 derivatives at tolerance 1e-10
Interpolation tests pass for order 0 at tolerance 1e-10
Interpolation tests pass for order 0 derivatives at tolerance 1e-10
Function   convergence rate at refinement 0: 1.98
Derivative convergence rate at refinement 0: 0.96
Function   convergence rate at refinement 1: 2.00
Derivative convergence rate at refinement 1: 0.99
Function   convergence rate at refinement 2: 2.01
Derivative convergence rate at refinement 2: 1.00