27 February 2022 01:30:17 PM

FEM2D_HEAT
  C++ version:

  Compiled on Feb 27 2022 at 13:29:53.

  Solution of the time dependent heat equation
  on an arbitrary triangulated region D in 2 dimensions.

  Ut - Uxx - Uyy + K(x,y,t) * U = F(x,y,t) in D
                              U = G(x,y,t) on the boundary.
                              U = H(x,y,t) at initial time.

  The finite element method is used with
  6 node quadratic triangular elements ("T6").

  The time derivative is approximated using the
  backward Euler method.

  Node file is "square_nodes.txt".
  Element file is "square_elements.txt".
  Number of nodes =          81

  First 10 nodes

  Row:       0             1       
  Col

    0:             0             0
    1:         0.125             0
    2:          0.25             0
    3:         0.375             0
    4:           0.5             0
    5:         0.625             0
    6:          0.75             0
    7:         0.875             0
    8:             1             0
    9:             0         0.125

  Element order =            6
  Number of elements =       32

  First 10 elements

  Row:      1       2       3       4       5       6  
  Col

    1       1      19       3      10      11       2  
    2      21       3      19      12      11      20  
    3       3      21       5      12      13       4  
    4      23       5      21      14      13      22  
    5       5      23       7      14      15       6  
    6      25       7      23      16      15      24  
    7       7      25       9      16      17       8  
    8      27       9      25      18      17      26  
    9      19      37      21      28      29      20  
   10      39      21      37      30      29      38  


  Quadrature order =          7

  The matrix half bandwidth is 18
  The matrix bandwidth is      37
  The storage bandwidth is     55

  Initial time = 0
  Final time =   0.5
  Step size =    0.05
  Number of steps = 10

FEM2D_HEAT:
  Normal end of execution.

27 February 2022 01:30:17 PM