def solveLinear (poly): # solving via -b/m
m = Tree(poly.coeffs[1])
b = Tree(poly.coeffs[0])
answer = Tree("=", OP, None, None)
answer.left = Tree(Polynomial(poly.var))
temp = Tree("-", OP, 0, b)
answer.right = Tree("/", OP, temp, m)
if INTERMEDIATE: print str(answer), "\t(Solving linear equation)"
answer.right = evalTree(answer.right)
return answer
def solveQuad(poly): # Solve via quadratic formula
a = Tree(poly.coeffs[2])
b = Tree(poly.coeffs[1])
c = Tree(poly.coeffs[0])
discriminant = Tree(
"sqrt",
FUNCTION,
Tree("-", OP,
Tree( "**", OP, b, 2),
Tree("*", OP,
4,
Tree( "*", OP, a, c)),
),
None,
)
answerLeft = Tree(Polynomial(poly.var))
answer1 = Tree( "=", OP , answerLeft, None) #may need Copy here
answer1.right = Tree("/", OP,
Tree( "+", OP,
Tree( "-", OP, 0, b ),
discriminant,
),
Tree("*", OP, 2, a )
)
if INTERMEDIATE: print str(answer1), "\t(Solving quadratic equation; root 1)"
answer1.right = evalTree(answer1.right)
answer2 = Tree("=", OP, answerLeft, None)
answer2.left = Tree(Polynomial(poly.var))
answer2.right = Tree("/", OP,
Tree( "-", OP,
Tree( "-", OP, 0, b ),
discriminant,
),
Tree("*", OP, 2, a))
if INTERMEDIATE: print str(answer2), "\t(Solving quadratic equation; root 2)"
answer2.right = evalTree(answer2.right)
return [answer1, answer2]
