#2) Fave Characteristic Discriminants
def disc(a,b,c):
return b^2-4*a*c
print "disc(1,2,-1) =",disc(1,2,-1)
print "disc(1,2,0) =",disc(1,2,0)
print "disc(1,2,1) =",disc(1,2,1)
print "disc(1,2,2) =",disc(1,2,2)
print "disc(1,0,4) =",disc(1,0,4)
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disc(1,2,-1) = 8
disc(1,2,0) = 4
disc(1,2,1) = 0
disc(1,2,2) = -4
disc(1,0,4) = -16
disc(1,2,-1) = 8
disc(1,2,0) = 4
disc(1,2,1) = 0
disc(1,2,2) = -4
disc(1,0,4) = -16
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