1Initial guess 2L_2 Error: 0.0208333 3Initial Residual 4L_2 Residual: 0. 5Au - b = Au + F(0) 6Linear L_2 Residual: 0. 7MFEM mesh v1.0 8 9dimension 102 11 12elements 1316 141 3 4 13 0 19 151 3 13 5 21 0 161 3 0 21 8 15 171 3 19 0 15 7 181 3 5 14 1 21 191 3 14 6 23 1 201 3 1 23 9 16 211 3 21 1 16 8 221 3 7 15 2 20 231 3 15 8 22 2 241 3 2 22 11 17 251 3 20 2 17 10 261 3 8 16 3 22 271 3 16 9 24 3 281 3 3 24 12 18 291 3 22 3 18 11 30 31boundary 320 33 34vertices 3525 362 37 0.25 0.25 38 0.75 0.25 39 0.25 0.75 40 0.75 0.75 41 0. 0. 42 0.5 0. 43 1. 0. 44 0. 0.5 45 0.5 0.5 46 1. 0.5 47 0. 1. 48 0.5 1. 49 1. 1. 50 0.25 0. 51 0.75 0. 52 0.25 0.5 53 0.75 0.5 54 0.25 1. 55 0.75 1. 56 0. 0.25 57 0. 0.75 58 0.5 0.25 59 0.5 0.75 60 1. 0.25 61 1. 0.75 62FiniteElementSpace 63FiniteElementCollection: H1_2D_P1 64VDim: 1 65Ordering: 1 66 67 0.125 68 0.625 69 0.625 70 1.125 71 0. 72 0.25 73 1. 74 0.25 75 0.5 76 1.25 77 1. 78 1.25 79 2. 80 0.0625 81 0.5625 82 0.3125 83 0.8125 84 1.0625 85 1.5625 86 0.0625 87 0.5625 88 0.3125 89 0.8125 90 1.0625 91 1.5625 92