pde3b_eq.c running xmin=-1, xmax=1.2, nx=11, hx=0.22 ymin=-1, ymax=1, ny=11, hy=0.2 zmin=-1, zmax=1, nz=9, hz=0.25 internal cells zeroed matrix initialized initial matrix, left side, upper -123.32 20.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 25.00 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 25.00 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 0.00 0.00 25.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -123.32 20.66 0.00 25.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 initial matrix, right side, upper 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 334.20 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 136.49 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 70.62 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 16.11 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -29.64 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -69.27 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -105.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -140.63 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -291.11 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 93.48 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 4.10 initial matrix, right side, lower -123.32 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 25.00 -599.61 0.00 -123.32 20.66 0.00 0.00 0.00 0.00 0.00 0.00 0.00 -500.27 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 0.00 0.00 0.00 -383.40 0.00 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 0.00 0.00 -419.34 0.00 0.00 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 0.00 -458.54 0.00 0.00 0.00 0.00 20.66 -123.32 20.66 0.00 0.00 0.00 -503.63 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 20.66 0.00 0.00 -557.23 0.00 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 20.66 0.00 -621.96 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 20.66 -700.44 25.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 20.66 -123.32 -1207.89 exact solution u[x,y,1] plane -3.634 -1.440 0.423 2.004 3.349 4.506 5.525 6.452 7.336 -1.946 -0.055 1.559 2.942 4.143 5.209 6.189 7.130 8.081 -0.576 1.052 2.454 3.679 4.774 5.787 6.767 7.761 8.818 0.541 1.944 3.173 4.278 5.306 6.306 7.324 8.410 9.611 1.468 2.684 3.780 4.804 5.804 6.828 7.924 9.140 10.524 2.269 3.338 4.339 5.320 6.331 7.418 8.630 10.015 11.621 3.009 3.968 4.913 5.891 6.951 8.140 9.507 11.100 12.966 3.750 4.639 5.566 6.579 7.727 9.057 10.618 12.457 14.622 4.557 5.414 6.362 7.450 8.724 10.234 12.027 14.151 16.655 u[x,y,2] plane -2.363 -0.168 1.695 3.275 4.620 5.778 6.797 7.724 8.608 -0.950 0.942 2.556 3.939 5.139 6.206 7.185 8.127 9.078 0.146 1.774 3.176 4.401 5.496 6.509 7.489 8.483 9.540 0.988 2.390 3.620 4.725 5.753 6.753 7.771 8.857 10.058 1.640 2.856 3.952 4.976 5.976 7.000 8.096 9.312 10.696 2.166 3.234 4.235 5.217 6.228 7.315 8.527 9.912 11.518 2.631 3.590 4.534 5.513 6.572 7.762 9.129 10.722 12.588 3.097 3.986 4.913 5.926 7.074 8.404 9.965 11.804 13.969 3.629 4.486 5.434 6.522 7.796 9.306 11.099 13.223 15.726 u[x,y,3] plane -1.668 0.526 2.390 3.970 5.315 6.473 7.491 8.419 9.303 -0.420 1.472 3.085 4.468 5.669 6.735 7.715 8.656 9.607 0.510 2.138 3.540 4.765 5.860 6.874 7.853 8.848 9.904 1.187 2.590 3.820 4.924 5.953 6.952 7.971 9.056 10.257 1.674 2.890 3.986 5.010 6.010 7.034 8.130 9.346 10.730 2.036 3.104 4.105 5.087 6.097 7.185 8.397 9.782 11.387 2.335 3.294 4.239 5.217 6.277 7.466 8.833 10.426 12.292 2.636 3.525 4.452 5.466 6.613 7.944 9.504 11.343 13.509 3.004 3.860 4.809 5.896 7.171 8.680 10.473 12.597 15.101 u[x,y,4] plane -1.458 0.737 2.600 4.180 5.525 6.683 7.702 8.629 9.513 -0.265 1.627 3.241 4.624 5.824 6.891 7.870 8.812 9.763 0.611 2.239 3.641 4.866 5.961 6.974 7.954 8.948 10.005 1.233 2.635 3.865 4.970 5.998 6.998 8.016 9.102 10.303 1.665 2.881 3.977 5.001 6.001 7.025 8.121 9.337 10.721 1.971 3.039 4.040 5.022 6.033 7.120 8.332 9.717 11.323 2.216 3.175 4.119 5.098 6.157 7.347 8.714 10.307 12.173 2.462 3.351 4.278 5.291 6.439 7.769 9.330 11.169 13.334 2.774 3.631 4.579 5.667 6.941 8.451 10.244 12.368 14.871 u[x,y,5] plane -1.637 0.558 2.421 4.001 5.346 6.504 7.522 8.450 9.334 -0.389 1.503 3.116 4.499 5.700 6.766 7.746 8.688 9.639 0.542 2.169 3.572 4.796 5.891 6.905 7.885 8.879 9.935 1.218 2.621 3.851 4.956 5.984 6.983 8.002 9.088 10.289 1.706 2.922 4.018 5.042 6.042 7.066 8.162 9.378 10.762 2.067 3.135 4.136 5.118 6.128 7.216 8.428 9.813 11.419 2.366 3.325 4.270 5.248 6.308 7.498 8.865 10.457 12.323 2.668 3.556 4.483 5.497 6.645 7.975 9.535 11.375 13.540 3.035 3.892 4.840 5.927 7.202 8.712 10.505 12.629 15.132 u[x,y,6] plane -2.113 0.082 1.945 3.525 4.870 6.028 7.047 7.974 8.858 -0.700 1.192 2.806 4.189 5.389 6.456 7.435 8.377 9.328 0.396 2.024 3.426 4.651 5.746 6.759 7.739 8.733 9.790 1.238 2.640 3.870 4.975 6.003 7.003 8.021 9.107 10.308 1.890 3.106 4.202 5.226 6.226 7.250 8.346 9.562 10.946 2.416 3.484 4.485 5.467 6.478 7.565 8.777 10.162 11.768 2.881 3.840 4.784 5.763 6.822 8.012 9.379 10.972 12.838 3.347 4.236 5.163 6.176 7.324 8.654 10.215 12.054 14.219 3.879 4.736 5.684 6.772 8.046 9.556 11.349 13.473 15.976 u[x,y,7] plane -2.791 -0.596 1.267 2.847 4.192 5.350 6.369 7.296 8.180 -1.103 0.789 2.403 3.786 4.986 6.052 7.032 7.974 8.925 0.268 1.896 3.298 4.523 5.618 6.631 7.611 8.605 9.662 1.385 2.787 4.017 5.122 6.150 7.150 8.168 9.254 10.455 2.312 3.528 4.624 5.648 6.648 7.672 8.768 9.984 11.368 3.113 4.181 5.182 6.164 7.175 8.262 9.474 10.859 12.465 3.853 4.812 5.756 6.734 7.794 8.984 10.351 11.943 13.810 4.594 5.483 6.410 7.423 8.571 9.901 11.462 13.301 15.466 5.401 6.258 7.206 8.294 9.568 11.078 12.871 14.995 17.498 computed solution u[x,y,1] plane -3.634 -1.440 0.423 2.004 3.349 4.506 5.525 6.452 7.336 -1.946 -0.055 1.559 2.942 4.143 5.209 6.189 7.130 8.081 -0.576 1.052 2.454 3.679 4.774 5.787 6.767 7.761 8.818 0.541 1.944 3.173 4.278 5.306 6.306 7.324 8.410 9.611 1.468 2.684 3.780 4.804 5.804 6.828 7.924 9.140 10.524 2.269 3.338 4.339 5.320 6.331 7.418 8.630 10.015 11.621 3.009 3.968 4.913 5.891 6.951 8.140 9.507 11.100 12.966 3.750 4.639 5.566 6.579 7.727 9.057 10.618 12.457 14.622 4.557 5.414 6.362 7.450 8.724 10.234 12.027 14.151 16.655 u[x,y,2] plane -2.363 -0.168 1.695 3.275 4.620 5.778 6.797 7.724 8.608 -0.950 0.942 2.556 3.939 5.139 6.206 7.185 8.127 9.078 0.146 1.774 3.176 4.401 5.496 6.509 7.489 8.483 9.540 0.988 2.390 3.620 4.725 5.753 6.753 7.771 8.857 10.058 1.640 2.856 3.952 4.976 5.976 7.000 8.096 9.312 10.696 2.166 3.234 4.235 5.217 6.228 7.315 8.527 9.912 11.518 2.631 3.590 4.534 5.513 6.572 7.762 9.129 10.722 12.588 3.097 3.986 4.913 5.926 7.074 8.404 9.965 11.804 13.969 3.629 4.486 5.434 6.522 7.796 9.306 11.099 13.223 15.726 u[x,y,3] plane -1.668 0.526 2.390 3.970 5.315 6.473 7.491 8.419 9.303 -0.420 1.472 3.085 4.468 5.669 6.735 7.715 8.656 9.607 0.510 2.138 3.540 4.765 5.860 6.874 7.853 8.848 9.904 1.187 2.590 3.820 4.924 5.953 6.952 7.971 9.056 10.257 1.674 2.890 3.986 5.010 6.010 7.034 8.130 9.346 10.730 2.036 3.104 4.105 5.087 6.097 7.185 8.397 9.782 11.387 2.335 3.294 4.239 5.217 6.277 7.466 8.833 10.426 12.292 2.636 3.525 4.452 5.466 6.613 7.944 9.504 11.343 13.509 3.004 3.860 4.809 5.896 7.171 8.680 10.473 12.597 15.101 u[x,y,4] plane -1.458 0.737 2.600 4.180 5.525 6.683 7.702 8.629 9.513 -0.265 1.627 3.241 4.624 5.824 6.891 7.870 8.812 9.763 0.611 2.239 3.641 4.866 5.961 6.974 7.954 8.948 10.005 1.233 2.635 3.865 4.970 5.998 6.998 8.016 9.102 10.303 1.665 2.881 3.977 5.001 6.001 7.025 8.121 9.337 10.721 1.971 3.039 4.040 5.022 6.033 7.120 8.332 9.717 11.323 2.216 3.175 4.119 5.098 6.157 7.347 8.714 10.307 12.173 2.462 3.351 4.278 5.291 6.439 7.769 9.330 11.169 13.334 2.774 3.631 4.579 5.667 6.941 8.451 10.244 12.368 14.871 u[x,y,5] plane -1.637 0.558 2.421 4.001 5.346 6.504 7.522 8.450 9.334 -0.389 1.503 3.116 4.499 5.700 6.766 7.746 8.688 9.639 0.542 2.169 3.572 4.796 5.891 6.905 7.885 8.879 9.935 1.218 2.621 3.851 4.956 5.984 6.983 8.002 9.088 10.289 1.706 2.922 4.018 5.042 6.042 7.066 8.162 9.378 10.762 2.067 3.135 4.136 5.118 6.128 7.216 8.428 9.813 11.419 2.366 3.325 4.270 5.248 6.308 7.498 8.865 10.457 12.323 2.668 3.556 4.483 5.497 6.645 7.975 9.535 11.375 13.540 3.035 3.892 4.840 5.927 7.202 8.712 10.505 12.629 15.132 u[x,y,6] plane -2.113 0.082 1.945 3.525 4.870 6.028 7.047 7.974 8.858 -0.700 1.192 2.806 4.189 5.389 6.456 7.435 8.377 9.328 0.396 2.024 3.426 4.651 5.746 6.759 7.739 8.733 9.790 1.238 2.640 3.870 4.975 6.003 7.003 8.021 9.107 10.308 1.890 3.106 4.202 5.226 6.226 7.250 8.346 9.562 10.946 2.416 3.484 4.485 5.467 6.478 7.565 8.777 10.162 11.768 2.881 3.840 4.784 5.763 6.822 8.012 9.379 10.972 12.838 3.347 4.236 5.163 6.176 7.324 8.654 10.215 12.054 14.219 3.879 4.736 5.684 6.772 8.046 9.556 11.349 13.473 15.976 u[x,y,7] plane -2.791 -0.596 1.267 2.847 4.192 5.350 6.369 7.296 8.180 -1.103 0.789 2.403 3.786 4.986 6.052 7.032 7.974 8.925 0.268 1.896 3.298 4.523 5.618 6.631 7.611 8.605 9.662 1.385 2.787 4.017 5.122 6.150 7.150 8.168 9.254 10.455 2.312 3.528 4.624 5.648 6.648 7.672 8.768 9.984 11.368 3.113 4.181 5.182 6.164 7.175 8.262 9.474 10.859 12.465 3.853 4.812 5.756 6.734 7.794 8.984 10.351 11.943 13.810 4.594 5.483 6.410 7.423 8.571 9.901 11.462 13.301 15.466 5.401 6.258 7.206 8.294 9.568 11.078 12.871 14.995 17.498 difference exact-computed solution u[x,y,1] plane -0.0000 0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 0.0000-0.0000 0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 -0.0000 0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000 0.0000-0.0000-0.0000-0.0000 0.0000 0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 0.0000-0.0000 0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 0.0000 0.0000-0.0000-0.0000 0.0000-0.0000 0.0000-0.0000-0.0000 u[x,y,2] plane -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000 0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000 0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000 0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 0.0000 -0.0000 0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000-0.0000 u[x,y,3] plane -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 0.0000-0.0000 0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000 0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000 0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 -0.0000 0.0000 0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000 0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 u[x,y,4] plane -0.0000-0.0000-0.0000 0.0000-0.0000 0.0000 0.0000-0.0000-0.0000 -0.0000-0.0000 0.0000-0.0000-0.0000-0.0000-0.0000 0.0000-0.0000 -0.0000-0.0000 0.0000-0.0000-0.0000 0.0000 0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 u[x,y,5] plane -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000-0.0000 u[x,y,6] plane 0.0000-0.0000-0.0000-0.0000-0.0000 0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 -0.0000-0.0000 0.0000-0.0000-0.0000-0.0000-0.0000 0.0000-0.0000 u[x,y,7] plane -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000 0.0000-0.0000-0.0000 0.0000-0.0000 0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 0.0000 0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 -0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000-0.0000 total error=3.97102e-12, average error=7.00357e-15, max error=3.55271e-14