13-Jul-2023 13:38:43

fem2d_poisson_rectangle_test():
  MATLAB/Octave version 5.2.0
  Test fem2d_poisson_rectangle().

fem2d_poisson_rectangle():
  MATLAB/Octave version 53
  MATLAB/Octave version 46
  MATLAB/Octave version 50
  MATLAB/Octave version 46
  MATLAB/Octave version 48
  Solution of the Poisson equation in the unit square
  in 2 dimensions.

  - Uxx - Uyy = F(x,y) in the box
       U(x,y) = G(x,y) on the boundary.

  The finite element method is used.
  Triangular elements are used, of order 6.

  The corner nodes of the triangles are generated by an
  underlying grid whose dimensions are

  NX =                       97
  NY =                       97

  Number of nodes =          37249
  Number of elements =       18432
  The matrix bandwidth is    1159

  Matrix assembly time = 551.047951 seconds.

  Linear system factor and solve time = 0.226187 seconds.

*********************************************
*                                           *
*  ERRORS:                                  *
*    L2 error =                0.000000     *
*    H1-seminorm error =       0.000235     *
*                                           *
*********************************************

  Wrote the node file "rectangle_nodes.txt"
  Wrote the element file "rectangle_elements.txt"
  Wrote the solution file "rectangle_solution.txt"

fem2d_poisson_rectangle():
  Normal end of execution.

fem2d_poisson_rectangle_test():
  Normal end of execution.

13-Jul-2023 13:52:23