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