pdenu24_eq.c running xg[1]=0.062500 xg[2]=0.125000 xg[3]=0.187500 xg[4]=0.250000 xg[5]=0.312500 xg[6]=0.375000 xg[7]=0.437500 xg[8]=0.500000 xg[9]=0.562500 xg[10]=0.625000 xg[11]=0.687500 xg[12]=0.750000 xg[13]=0.812500 xg[14]=0.875000 xg[15]=0.937500 xg[16]=1.000000 yg[1]=0.062500 yg[2]=0.125000 yg[3]=0.187500 yg[4]=0.250000 yg[5]=0.312500 yg[6]=0.375000 yg[7]=0.437500 yg[8]=0.500000 yg[9]=0.562500 yg[10]=0.625000 yg[11]=0.687500 yg[12]=0.750000 yg[13]=0.812500 yg[14]=0.875000 yg[15]=0.937500 yg[16]=1.000000 xmin=0, xmax=1, nx=17 ymin=0, ymax=1, ny=17 u(xg[1],yg[1])=1.06051 c(xg[1],yg[1])=-1.06051 internal cells zeroed matrix initialized computed solution xg[1]=0.062500,yg[1]=0.062500, us=1.05173, err=-0.00877336 xg[1]=0.062500,yg[2]=0.125000, us=1.046, err=-0.00865913 xg[1]=0.062500,yg[3]=0.187500, us=1.03626, err=-0.00867169 xg[1]=0.062500,yg[4]=0.250000, us=1.0227, err=-0.00867119 xg[1]=0.062500,yg[5]=0.312500, us=1.00535, err=-0.00867386 xg[1]=0.062500,yg[6]=0.375000, us=0.984291, err=-0.00867602 xg[1]=0.062500,yg[7]=0.437500, us=0.959594, err=-0.00867893 xg[1]=0.062500,yg[8]=0.500000, us=0.93136, err=-0.00868179 xg[1]=0.062500,yg[9]=0.562500, us=0.899699, err=-0.00868475 xg[1]=0.062500,yg[10]=0.625000, us=0.864736, err=-0.00868604 xg[1]=0.062500,yg[11]=0.687500, us=0.826612, err=-0.00868198 xg[1]=0.062500,yg[12]=0.750000, us=0.785493, err=-0.00865533 xg[1]=0.062500,yg[13]=0.812500, us=0.741587, err=-0.00855797 xg[1]=0.062500,yg[14]=0.875000, us=0.695248, err=-0.00820825 xg[1]=0.062500,yg[15]=0.937500, us=0.647152, err=-0.00711249 xg[2]=0.125000,yg[1]=0.062500, us=1.10502, err=-0.017705 xg[2]=0.125000,yg[2]=0.125000, us=1.0994, err=-0.0174756 xg[2]=0.125000,yg[3]=0.187500, us=1.08965, err=-0.0174998 xg[2]=0.125000,yg[4]=0.250000, us=1.07609, err=-0.0174975 xg[2]=0.125000,yg[5]=0.312500, us=1.05874, err=-0.0175012 xg[2]=0.125000,yg[6]=0.375000, us=1.03768, err=-0.0175034 xg[2]=0.125000,yg[7]=0.437500, us=1.01298, err=-0.0175069 xg[2]=0.125000,yg[8]=0.500000, us=0.984747, err=-0.0175098 xg[2]=0.125000,yg[9]=0.562500, us=0.953087, err=-0.0175127 xg[2]=0.125000,yg[10]=0.625000, us=0.918126, err=-0.0175119 xg[2]=0.125000,yg[11]=0.687500, us=0.88001, err=-0.0175002 xg[2]=0.125000,yg[12]=0.750000, us=0.838921, err=-0.0174431 xg[2]=0.125000,yg[13]=0.812500, us=0.795115, err=-0.0172454 xg[2]=0.125000,yg[14]=0.875000, us=0.749128, err=-0.016544 xg[2]=0.125000,yg[15]=0.937500, us=0.702127, err=-0.0143526 xg[3]=0.187500,yg[1]=0.062500, us=1.15803, err=-0.0264166 xg[3]=0.187500,yg[2]=0.125000, us=1.15253, err=-0.0260755 xg[3]=0.187500,yg[3]=0.187500, us=1.14277, err=-0.026111 xg[3]=0.187500,yg[4]=0.250000, us=1.12921, err=-0.0261069 xg[3]=0.187500,yg[5]=0.312500, us=1.11186, err=-0.0261116 xg[3]=0.187500,yg[6]=0.375000, us=1.0908, err=-0.026114 xg[3]=0.187500,yg[7]=0.437500, us=1.0661, err=-0.026118 xg[3]=0.187500,yg[8]=0.500000, us=1.03786, err=-0.0261212 xg[3]=0.187500,yg[9]=0.562500, us=1.0062, err=-0.0261241 xg[3]=0.187500,yg[10]=0.625000, us=0.971245, err=-0.0261215 xg[3]=0.187500,yg[11]=0.687500, us=0.933136, err=-0.0261025 xg[3]=0.187500,yg[12]=0.750000, us=0.892076, err=-0.0260166 xg[3]=0.187500,yg[13]=0.812500, us=0.848365, err=-0.0257237 xg[3]=0.187500,yg[14]=0.875000, us=0.802713, err=-0.0246871 xg[3]=0.187500,yg[15]=0.937500, us=0.756764, err=-0.0214443 xg[4]=0.250000,yg[1]=0.062500, us=1.21079, err=-0.0346568 xg[4]=0.250000,yg[2]=0.125000, us=1.20539, err=-0.0342108 xg[4]=0.250000,yg[3]=0.187500, us=1.19562, err=-0.0342569 xg[4]=0.250000,yg[4]=0.250000, us=1.18207, err=-0.0342512 xg[4]=0.250000,yg[5]=0.312500, us=1.16472, err=-0.0342568 xg[4]=0.250000,yg[6]=0.375000, us=1.14365, err=-0.0342594 xg[4]=0.250000,yg[7]=0.437500, us=1.11895, err=-0.034264 xg[4]=0.250000,yg[8]=0.500000, us=1.09072, err=-0.0342675 xg[4]=0.250000,yg[9]=0.562500, us=1.05906, err=-0.0342704 xg[4]=0.250000,yg[10]=0.625000, us=1.0241, err=-0.0342661 xg[4]=0.250000,yg[11]=0.687500, us=0.985998, err=-0.0342407 xg[4]=0.250000,yg[12]=0.750000, us=0.944964, err=-0.0341285 xg[4]=0.250000,yg[13]=0.812500, us=0.90134, err=-0.0337494 xg[4]=0.250000,yg[14]=0.875000, us=0.855993, err=-0.0324077 xg[4]=0.250000,yg[15]=0.937500, us=0.811011, err=-0.0281976 xg[5]=0.312500,yg[1]=0.062500, us=1.26332, err=-0.0421649 xg[5]=0.312500,yg[2]=0.125000, us=1.25801, err=-0.0416246 xg[5]=0.312500,yg[3]=0.187500, us=1.24823, err=-0.0416802 xg[5]=0.312500,yg[4]=0.250000, us=1.23468, err=-0.0416731 xg[5]=0.312500,yg[5]=0.312500, us=1.21733, err=-0.0416796 xg[5]=0.312500,yg[6]=0.375000, us=1.19626, err=-0.0416825 xg[5]=0.312500,yg[7]=0.437500, us=1.17156, err=-0.0416876 xg[5]=0.312500,yg[8]=0.500000, us=1.14333, err=-0.0416914 xg[5]=0.312500,yg[9]=0.562500, us=1.11167, err=-0.0416945 xg[5]=0.312500,yg[10]=0.625000, us=1.07671, err=-0.0416889 xg[5]=0.312500,yg[11]=0.687500, us=1.03862, err=-0.041658 xg[5]=0.312500,yg[12]=0.750000, us=0.997604, err=-0.0415234 xg[5]=0.312500,yg[13]=0.812500, us=0.954054, err=-0.0410704 xg[5]=0.312500,yg[14]=0.875000, us=0.908968, err=-0.0394669 xg[5]=0.312500,yg[15]=0.937500, us=0.864831, err=-0.0344126 xg[6]=0.375000,yg[1]=0.062500, us=1.31564, err=-0.0486765 xg[6]=0.375000,yg[2]=0.125000, us=1.31041, err=-0.0480564 xg[6]=0.375000,yg[3]=0.187500, us=1.30063, err=-0.04812 xg[6]=0.375000,yg[4]=0.250000, us=1.28707, err=-0.0481118 xg[6]=0.375000,yg[5]=0.312500, us=1.26972, err=-0.0481191 xg[6]=0.375000,yg[6]=0.375000, us=1.24866, err=-0.0481222 xg[6]=0.375000,yg[7]=0.437500, us=1.22396, err=-0.0481279 xg[6]=0.375000,yg[8]=0.500000, us=1.19572, err=-0.048132 xg[6]=0.375000,yg[9]=0.562500, us=1.16406, err=-0.0481353 xg[6]=0.375000,yg[10]=0.625000, us=1.12911, err=-0.0481288 xg[6]=0.375000,yg[11]=0.687500, us=1.09101, err=-0.0480938 xg[6]=0.375000,yg[12]=0.750000, us=1.05002, err=-0.0479417 xg[6]=0.375000,yg[13]=0.812500, us=1.00653, err=-0.0474305 xg[6]=0.375000,yg[14]=0.875000, us=0.961649, err=-0.0456202 xg[6]=0.375000,yg[15]=0.937500, us=0.918196, err=-0.0398815 xg[7]=0.437500,yg[1]=0.062500, us=1.3678, err=-0.0539235 xg[7]=0.437500,yg[2]=0.125000, us=1.36263, err=-0.0532417 xg[7]=0.437500,yg[3]=0.187500, us=1.35284, err=-0.0533115 xg[7]=0.437500,yg[4]=0.250000, us=1.33929, err=-0.0533025 xg[7]=0.437500,yg[5]=0.312500, us=1.32193, err=-0.0533105 xg[7]=0.437500,yg[6]=0.375000, us=1.30087, err=-0.0533139 xg[7]=0.437500,yg[7]=0.437500, us=1.27617, err=-0.0533201 xg[7]=0.437500,yg[8]=0.500000, us=1.24793, err=-0.0533247 xg[7]=0.437500,yg[9]=0.562500, us=1.21627, err=-0.0533284 xg[7]=0.437500,yg[10]=0.625000, us=1.18132, err=-0.0533215 xg[7]=0.437500,yg[11]=0.687500, us=1.14323, err=-0.0532838 xg[7]=0.437500,yg[12]=0.750000, us=1.10225, err=-0.0531199 xg[7]=0.437500,yg[13]=0.812500, us=1.05879, err=-0.0525689 xg[7]=0.437500,yg[14]=0.875000, us=1.01406, err=-0.050617 xg[7]=0.437500,yg[15]=0.937500, us=0.971095, err=-0.0443868 xg[8]=0.500000,yg[1]=0.062500, us=1.41984, err=-0.0576354 xg[8]=0.500000,yg[2]=0.125000, us=1.41471, err=-0.0569137 xg[8]=0.500000,yg[3]=0.187500, us=1.40491, err=-0.0569875 xg[8]=0.500000,yg[4]=0.250000, us=1.39136, err=-0.0569781 xg[8]=0.500000,yg[5]=0.312500, us=1.37401, err=-0.0569867 xg[8]=0.500000,yg[6]=0.375000, us=1.35294, err=-0.0569904 xg[8]=0.500000,yg[7]=0.437500, us=1.32824, err=-0.0569972 xg[8]=0.500000,yg[8]=0.500000, us=1.30001, err=-0.0570021 xg[8]=0.500000,yg[9]=0.562500, us=1.26834, err=-0.0570064 xg[8]=0.500000,yg[10]=0.625000, us=1.23339, err=-0.0569996 xg[8]=0.500000,yg[11]=0.687500, us=1.1953, err=-0.056961 xg[8]=0.500000,yg[12]=0.750000, us=1.15432, err=-0.0567917 xg[8]=0.500000,yg[13]=0.812500, us=1.11089, err=-0.0562215 xg[8]=0.500000,yg[14]=0.875000, us=1.06622, err=-0.0542007 xg[8]=0.500000,yg[15]=0.937500, us=1.02353, err=-0.0477004 xg[9]=0.562500,yg[1]=0.062500, us=1.47181, err=-0.0595398 xg[9]=0.562500,yg[2]=0.125000, us=1.4667, err=-0.0588035 xg[9]=0.562500,yg[3]=0.187500, us=1.4569, err=-0.0588788 xg[9]=0.562500,yg[4]=0.250000, us=1.44335, err=-0.0588694 xg[9]=0.562500,yg[5]=0.312500, us=1.42599, err=-0.0588784 xg[9]=0.562500,yg[6]=0.375000, us=1.40493, err=-0.0588825 xg[9]=0.562500,yg[7]=0.437500, us=1.38023, err=-0.0588897 xg[9]=0.562500,yg[8]=0.500000, us=1.35199, err=-0.0588953 xg[9]=0.562500,yg[9]=0.562500, us=1.32033, err=-0.0589001 xg[9]=0.562500,yg[10]=0.625000, us=1.28537, err=-0.0588941 xg[9]=0.562500,yg[11]=0.687500, us=1.24728, err=-0.0588564 xg[9]=0.562500,yg[12]=0.750000, us=1.2063, err=-0.0586885 xg[9]=0.562500,yg[13]=0.812500, us=1.16287, err=-0.0581209 xg[9]=0.562500,yg[14]=0.875000, us=1.11819, err=-0.0561094 xg[9]=0.562500,yg[15]=0.937500, us=1.07553, err=-0.0495825 xg[10]=0.625000,yg[1]=0.062500, us=1.52378, err=-0.0593634 xg[10]=0.625000,yg[2]=0.125000, us=1.51865, err=-0.0586407 xg[10]=0.625000,yg[3]=0.187500, us=1.50886, err=-0.0587147 xg[10]=0.625000,yg[4]=0.250000, us=1.4953, err=-0.0587059 xg[10]=0.625000,yg[5]=0.312500, us=1.47795, err=-0.0587151 xg[10]=0.625000,yg[6]=0.375000, us=1.45689, err=-0.0587197 xg[10]=0.625000,yg[7]=0.437500, us=1.43218, err=-0.0587274 xg[10]=0.625000,yg[8]=0.500000, us=1.40395, err=-0.0587335 xg[10]=0.625000,yg[9]=0.562500, us=1.37228, err=-0.0587391 xg[10]=0.625000,yg[10]=0.625000, us=1.33733, err=-0.0587344 xg[10]=0.625000,yg[11]=0.687500, us=1.29923, err=-0.0586996 xg[10]=0.625000,yg[12]=0.750000, us=1.25825, err=-0.0585401 xg[10]=0.625000,yg[13]=0.812500, us=1.21479, err=-0.0579978 xg[10]=0.625000,yg[14]=0.875000, us=1.17002, err=-0.0560755 xg[10]=0.625000,yg[15]=0.937500, us=1.12712, err=-0.0497799 xg[11]=0.687500,yg[1]=0.062500, us=1.57582, err=-0.0568335 xg[11]=0.687500,yg[2]=0.125000, us=1.57065, err=-0.0561554 xg[11]=0.687500,yg[3]=0.187500, us=1.56086, err=-0.0562249 xg[11]=0.687500,yg[4]=0.250000, us=1.5473, err=-0.0562172 xg[11]=0.687500,yg[5]=0.312500, us=1.52995, err=-0.0562265 xg[11]=0.687500,yg[6]=0.375000, us=1.50888, err=-0.0562316 xg[11]=0.687500,yg[7]=0.437500, us=1.48418, err=-0.0562397 xg[11]=0.687500,yg[8]=0.500000, us=1.45594, err=-0.0562465 xg[11]=0.687500,yg[9]=0.562500, us=1.42428, err=-0.056253 xg[11]=0.687500,yg[10]=0.625000, us=1.38932, err=-0.0562502 xg[11]=0.687500,yg[11]=0.687500, us=1.35122, err=-0.05622 xg[11]=0.687500,yg[12]=0.750000, us=1.31022, err=-0.056076 xg[11]=0.687500,yg[13]=0.812500, us=1.26671, err=-0.0555813 xg[11]=0.687500,yg[14]=0.875000, us=1.22178, err=-0.0538272 xg[11]=0.687500,yg[15]=0.937500, us=1.17839, err=-0.0480263 xg[12]=0.750000,yg[1]=0.062500, us=1.62801, err=-0.0516794 xg[12]=0.750000,yg[2]=0.125000, us=1.62276, err=-0.0510782 xg[12]=0.750000,yg[3]=0.187500, us=1.61297, err=-0.0511403 xg[12]=0.750000,yg[4]=0.250000, us=1.59942, err=-0.0511342 xg[12]=0.750000,yg[5]=0.312500, us=1.58206, err=-0.0511433 xg[12]=0.750000,yg[6]=0.375000, us=1.561, err=-0.0511489 xg[12]=0.750000,yg[7]=0.437500, us=1.5363, err=-0.0511574 xg[12]=0.750000,yg[8]=0.500000, us=1.50806, err=-0.0511649 xg[12]=0.750000,yg[9]=0.562500, us=1.47639, err=-0.0511724 xg[12]=0.750000,yg[10]=0.625000, us=1.44143, err=-0.051172 xg[12]=0.750000,yg[11]=0.687500, us=1.40333, err=-0.0511482 xg[12]=0.750000,yg[12]=0.750000, us=1.3623, err=-0.0510262 xg[12]=0.750000,yg[13]=0.812500, us=1.31872, err=-0.0506005 xg[12]=0.750000,yg[14]=0.875000, us=1.27355, err=-0.0490893 xg[12]=0.750000,yg[15]=0.937500, us=1.2294, err=-0.0440411 xg[13]=0.812500,yg[1]=0.062500, us=1.68043, err=-0.0436306 xg[13]=0.812500,yg[2]=0.125000, us=1.67507, err=-0.043139 xg[13]=0.812500,yg[3]=0.187500, us=1.66529, err=-0.0431904 xg[13]=0.812500,yg[4]=0.250000, us=1.65173, err=-0.0431865 xg[13]=0.812500,yg[5]=0.312500, us=1.63438, err=-0.0431952 xg[13]=0.812500,yg[6]=0.375000, us=1.61331, err=-0.0432014 xg[13]=0.812500,yg[7]=0.437500, us=1.58861, err=-0.0432102 xg[13]=0.812500,yg[8]=0.500000, us=1.56037, err=-0.0432186 xg[13]=0.812500,yg[9]=0.562500, us=1.52871, err=-0.0432271 xg[13]=0.812500,yg[10]=0.625000, us=1.49374, err=-0.0432297 xg[13]=0.812500,yg[11]=0.687500, us=1.45563, err=-0.0432138 xg[13]=0.812500,yg[12]=0.750000, us=1.41458, err=-0.0431199 xg[13]=0.812500,yg[13]=0.812500, us=1.37091, err=-0.0427828 xg[13]=0.812500,yg[14]=0.875000, us=1.32542, err=-0.0415816 xg[13]=0.812500,yg[15]=0.937500, us=1.28029, err=-0.0375275 xg[14]=0.875000,yg[1]=0.062500, us=1.73316, err=-0.0324289 xg[14]=0.875000,yg[2]=0.125000, us=1.72766, err=-0.032078 xg[14]=0.875000,yg[3]=0.187500, us=1.7179, err=-0.0321157 xg[14]=0.875000,yg[4]=0.250000, us=1.70434, err=-0.0321144 xg[14]=0.875000,yg[5]=0.312500, us=1.68699, err=-0.0321226 xg[14]=0.875000,yg[6]=0.375000, us=1.66592, err=-0.0321293 xg[14]=0.875000,yg[7]=0.437500, us=1.64122, err=-0.0321382 xg[14]=0.875000,yg[8]=0.500000, us=1.61298, err=-0.0321472 xg[14]=0.875000,yg[9]=0.562500, us=1.58131, err=-0.0321568 xg[14]=0.875000,yg[10]=0.625000, us=1.54634, err=-0.0321625 xg[14]=0.875000,yg[11]=0.687500, us=1.50822, err=-0.0321558 xg[14]=0.875000,yg[12]=0.750000, us=1.46714, err=-0.0320947 xg[14]=0.875000,yg[13]=0.812500, us=1.42337, err=-0.031863 xg[14]=0.875000,yg[14]=0.875000, us=1.37751, err=-0.0310285 xg[14]=0.875000,yg[15]=0.937500, us=1.33117, err=-0.0281803 xg[15]=0.937500,yg[1]=0.062500, us=1.78633, err=-0.0177948 xg[15]=0.937500,yg[2]=0.125000, us=1.78067, err=-0.0176113 xg[15]=0.937500,yg[3]=0.187500, us=1.77092, err=-0.0176329 xg[15]=0.937500,yg[4]=0.250000, us=1.75736, err=-0.0176348 xg[15]=0.937500,yg[5]=0.312500, us=1.74001, err=-0.0176423 xg[15]=0.937500,yg[6]=0.375000, us=1.71894, err=-0.0176498 xg[15]=0.937500,yg[7]=0.437500, us=1.69424, err=-0.0176591 xg[15]=0.937500,yg[8]=0.500000, us=1.66599, err=-0.0176691 xg[15]=0.937500,yg[9]=0.562500, us=1.63433, err=-0.0176801 xg[15]=0.937500,yg[10]=0.625000, us=1.59935, err=-0.0176896 xg[15]=0.937500,yg[11]=0.687500, us=1.56122, err=-0.0176933 xg[15]=0.937500,yg[12]=0.750000, us=1.5201, err=-0.0176695 xg[15]=0.937500,yg[13]=0.812500, us=1.47621, err=-0.0175573 xg[15]=0.937500,yg[14]=0.875000, us=1.42994, err=-0.017134 xg[15]=0.937500,yg[15]=0.937500, us=1.38222, err=-0.0156616 difference exact-computed solution 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.009 0.018 0.017 0.017 0.017 0.018 0.018 0.018 0.018 0.018 0.026 0.026 0.026 0.026 0.026 0.026 0.026 0.026 0.026 0.035 0.034 0.034 0.034 0.034 0.034 0.034 0.034 0.034 0.042 0.042 0.042 0.042 0.042 0.042 0.042 0.042 0.042 0.049 0.048 0.048 0.048 0.048 0.048 0.048 0.048 0.048 0.054 0.053 0.053 0.053 0.053 0.053 0.053 0.053 0.053 0.058 0.057 0.057 0.057 0.057 0.057 0.057 0.057 0.057 0.060 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.059 0.057 0.056 0.056 0.056 0.056 0.056 0.056 0.056 0.056 0.052 0.051 0.051 0.051 0.051 0.051 0.051 0.051 0.051 0.044 0.043 0.043 0.043 0.043 0.043 0.043 0.043 0.043 0.032 0.032 0.032 0.032 0.032 0.032 0.032 0.032 0.032 0.018 0.018 0.018 0.018 0.018 0.018 0.018 0.018 0.018 nx=17, ny=17 total error=8.94374, average error=0.0397499, max error=0.0595398