20 August    2023   8:10:12.929 AM      
 
triangle_analyze():
  FORTRAN77 version:
  Analyze properties of a triangle whose
  vertex coordinates are read from a file.
 
  Read header of "tex1.txt".
 
  Spatial dimension DIM_NUM =        2
  Number of points NODE_NUM =        3
 
  Read the data in "tex1.txt".
 
  Node coordinates:
 
       Row       1             2      
       Col
         1:   4.00000       1.00000    
         2:   8.00000       3.00000    
         3:   0.00000       9.00000    
 
  ANGLES (radians):
 
         1:    1.5707963    
         2:    1.1071487    
         3:   0.46364761    
 
  ANGLES (degrees):
 
         1:    90.000000    
         2:    63.434949    
         3:    26.565051    
 
  AREA:     20.0000    
 
  CENTROID:     4.00000       4.33333    
 
  CIRCUM_RADIUS:     5.00000    
  CIRCUM_CENTER:    4.00000       6.00000    
 
  EDGE_LENGTHS:
 
         1:    4.4721360    
         2:    10.000000    
         3:    8.9442719    
 
  IN_RADIUS:     1.70820    
  IN_CENTER:    4.76393       3.29180    
 
  ORIENTATION: CounterClockwise.
 
  ORTHO_CENTER:     4.00000       1.00000    
 
  QUALITY:    0.683282    
 
triangle_analyze():
  Normal end of execution.
 
20 August    2023   8:10:12.938 AM