1*8b0e23d0SMatthew G. KnepleyL_2 Error: [6.55463e-16, 1.20698e-16] 2*8b0e23d0SMatthew G. KnepleyL_2 Residual: 2.88321e-14 3*8b0e23d0SMatthew G. KnepleyFunction appears to be linear 4