CSC270 GenerateTruthTable.py

# truthtable.py
# D. Thiebaut
# how a simple python program can generate the
# truth table of a boolean function
#
# here f is a function of 3 variables
#       _
# f = a.b + c
#     _   _   _
# g = a + b + c
def f( a, b, c ):
    return ( a and not b ) or c

def g( a, b, c ):
    return not a or not b or not c


def main():
    print "  a  b  c  |  f  g  "
    print "-----------+--------"
    for a in [ 0, 1 ]:
        for b in [ 0, 1 ]:
            for c in [ 0, 1 ]:
                print "%3d%3d%3d  |%3d%3d" % \
                      ( a, b, c, f( a, b, c ), g( a, b, c ) )

                
main()

The output is show below:

<code>
  a  b  c  |  f  g  
-----------+--------
  0  0  0  |  0  1
  0  0  1  |  1  1
  0  1  0  |  0  1
  0  1  1  |  1  1
  1  0  0  |  1  1
  1  0  1  |  1  1
  1  1  0  |  0  1
  1  1  1  |  1  0

</code>