def equation_to_zero(equation):
try:
lhs, rhs = map(lambda expr: variables.simplify(tokenizer.gen_tokens(expr)), equation.split('='))
except:
raise SyntaxError('This isn\'t an equation!')
return lhs - rhs
except:
raise SyntaxError('This isn\'t an equation!')
return lhs - rhs
def sign(n):
return '+' if n >= 0 else '-'
def f2s(f):
return '{:.15g}'.format(f)
equation = input('Welcome to the Polynomial Solver!\nPlease enter your polynomial below, using x to represent the roots.\n\n')
expression_count = equation.count('=')
if expression_count == 0:
print(variables.simplify(tokenizer.gen_tokens(equation)))
elif expression_count == 1:
coeffs = equation_to_zero(equation)
quadratic = set(coeffs.keys()) <= {0, 1, 2}
if set(coeffs.keys()) <= {0}:
print(coeffs[0])
elif quadratic:
options = ['Solve with Quadratic Formula','Solve by Completing the Square','Find the Discriminant','Rewrite in Standard Form']
print('\nChoose the problem type:')
for i, option in enumerate(options): print('{}) {}'.format(i + 1, option))
while True:
option = input('>> ')