rm results_pg
cp true source.dat
./airfoil.py 50
./fourd.pg >> results_pg
./airfoil.py 100
./fourd.pg >> results_pg
./airfoil.py 150
./fourd.pg >> results_pg
./airfoil.py 200
./fourd.pg >> results_pg
./airfoil.py 250
./fourd.pg >> results_pg
./airfoil.py 300
./fourd.pg >> results_pg
./airfoil.py 350
./fourd.pg >> results_pg
./airfoil.py 400
./fourd.pg >> results_pg
./airfoil.py 450
./fourd.pg >> results_pg
./airfoil.py 500
./fourd.pg >> results_pg

cp false source.dat
./airfoil.py 50
./fourd.pg >> results_pg
./airfoil.py 100
./fourd.pg >> results_pg
./airfoil.py 150
./fourd.pg >> results_pg
./airfoil.py 200
./fourd.pg >> results_pg
./airfoil.py 250
./fourd.pg >> results_pg
./airfoil.py 300
./fourd.pg >> results_pg
./airfoil.py 350
./fourd.pg >> results_pg
./airfoil.py 400
./fourd.pg >> results_pg
./airfoil.py 450
./fourd.pg >> results_pg
./airfoil.py 500
./fourd.pg >> results_pg