#! /usr/bin/env python3
#
def five_incidence ( ):

#*****************************************************************************80
#
## five_incidence() sets up the incidence matrix associated with a network.
#
#  Licensing:
#
#    This code is distributed under the GNU LGPL license.
#
#  Modified:
#
#    10 April 2022
#
#  Author:
#
#    John Burkardt
#
#  Output:
#
#    integer A(5,5): an incidence matrix.
#
  import numpy as np

  A = np.array ( [ \
    [ 0, 1, 0, 0, 0 ], \
    [ 0, 0, 0, 0, 1 ], \
    [ 1, 0, 0, 0, 0 ], \
    [ 1, 0, 0, 0, 0 ], \
    [ 1, 0, 0, 0, 0 ] ] )

  return A

if ( __name__ == '__main__' ):
  A = five_incidence ( )
  print ( A )