1*8b0e23d0SMatthew G. KnepleyL_2 Error: [2.08577e-16, 3.51044e-17] 2*8b0e23d0SMatthew G. KnepleyL_2 Residual: 3.30808e-15 3*8b0e23d0SMatthew G. KnepleyFunction appears to be linear 4