def format_useranswer(user_answer, display=False):
user_answer = user_answer.replace('X', 'x')
user_answer = user_answer.replace('Y', 'y')
user_answer = user_answer.replace('Z', 'z')
user_answer = user_answer.replace('abs', 'Abs')
user_answer = fmt_abs_value(user_answer)
user_answer = user_answer.replace('^', '**')
user_answer = parse_expr(user_answer, transformations=transformations, evaluate=False)
# user_answer = commute_AbsMul_to_MulAbs(user_answer)
# user_answer = commute_AbsMul_to_MulAbs(user_answer)
# user_answer = drop_redundant_abs(user_answer)
# print('user stuff', user_answer, type(user_answer))
# if isinstance(user_answer, sy.Pow):
# if user_answer.args[1] == -1:
# # print('My fault!')
# # print(user_answer.args)
# if isinstance(user_answer.args[0], sy.Pow):
# user_base = user_answer.args[0].args[0]
# user_expo = -user_answer.args[0].args[1]
# user_answer = sy.Pow(user_base, sy.simplify(user_expo))
# # print('alt', user_answer, type(user_answer))
# # for arg in sy.preorder_traversal(user_answer):
# # print(arg)
# else:
#
# else:
# user_base = user_answer.args[0]
# user_expo = user_answer.args[1]
# user_answer = sy.Pow(user_base, sy.simplify(user_expo))
# # print('standard', user_answer, type(user_answer))
# # for arg in sy.preorder_traversal(user_answer):
# # print(arg)
# return f'\\( {sy.latex(user_base)}^{{ {sy.latex(user_expo)} }} \\)'
return f'\({sy.latex(user_answer)}\)'
def format_useranswer(self, user_answer, display=False):
user_answer = user_answer.replace('X', 'x')
user_answer = user_answer.replace('Y', 'y')
user_answer = user_answer.replace('abs', 'Abs')
user_answer = fmt_abs_value(user_answer)
user_answer = user_answer.replace('^', '**')
lhs, rhs = user_answer.split('=')
lhs = parse_expr(lhs, transformations=transformations)
rhs = parse_expr(rhs, transformations=transformations)
user_answer = sy.Eq(lhs, rhs)
y = sy.Symbol('y')
user_answer = sy.solve(user_answer, y)[0]
return f'\(y = {sy.latex(user_answer)}\)'
def validator(user_answer):
try:
user_answer = user_answer.replace('X', 'x')
user_answer = user_answer.replace('Y', 'y')
user_answer = user_answer.replace('abs', 'Abs')
user_answer = fmt_abs_value(user_answer)
user_answer = user_answer.replace('^', '**')
lhs, rhs = user_answer.split('=')
lhs = parse_expr(lhs, transformations=transformations)
rhs = parse_expr(rhs, transformations=transformations)
user_answer = sy.Eq(lhs, rhs)
y = sy.Symbol('y')
user_answer = sy.solve(user_answer, y)[0]
except:
raise SyntaxError
def checkanswer(self, user_answer):
user_answer = user_answer.replace('X', 'x')
user_answer = user_answer.replace('Y', 'y')
user_answer = user_answer.replace('abs', 'Abs')
user_answer = fmt_abs_value(user_answer)
if 'y' not in user_answer:
return False
user_answer = user_answer.replace('^', '**')
lhs, rhs = user_answer.split('=')
lhs = parse_expr(lhs, transformations=transformations)
rhs = parse_expr(rhs, transformations=transformations)
user_answer = sy.Eq(lhs, rhs)
y = sy.Symbol('y')
user_answer = sy.solve(user_answer, y)[0]
return self.answer.equals(user_answer)
def validator(user_answer):
try:
# pass
user_answer = user_answer.replace('X', 'x')
user_answer = user_answer.replace('Y', 'y')
user_answer = user_answer.replace('Z', 'z')
user_answer = user_answer.replace('abs', 'Abs')
user_answer = fmt_abs_value(user_answer)
user_answer = user_answer.replace('^', '**')
user_answer = parse_expr(user_answer, transformations=transformations)
# user_answer = commute_AbsMul_to_MulAbs(user_answer)
# user_answer = commute_AbsMul_to_MulAbs(user_answer)
# user_answer = drop_redundant_abs(user_answer)
f'\({sy.latex(user_answer)}\)'
except:
raise SyntaxError
def checkanswer(self, user_answer):
user_answer = user_answer.replace('X', 'x')
user_answer = user_answer.replace('Y', 'y')
user_answer = user_answer.replace('Z', 'z')
user_answer = user_answer.replace('abs', 'Abs')
user_answer = fmt_abs_value(user_answer)
user_answer = user_answer.replace('^', '**')
user_answer = parse_expr(user_answer, transformations=transformations, evaluate=False)
# user_answer = commute_AbsMul_to_MulAbs(user_answer)
# user_answer = commute_AbsMul_to_MulAbs(user_answer) #second time really commutes AbsPow to PowAbs
# user_answer = drop_redundant_abs(user_answer)
# if has_rational_power(user_answer):
# return False
# print('user stuff', user_answer, type(user_answer))
# for arg in sy.preorder_traversal(user_answer):
# print(arg)
# if isinstance(user_answer, sy.Pow):
# if user_answer.args[1] == -1:
# # print('My fault!')
# # print(user_answer.args)
# if isinstance(user_answer.args[0], sy.Pow):
# user_base = user_answer.args[0].args[0]
# user_expo = -user_answer.args[0].args[1]
# user_answer = sy.Pow(user_base, sy.simplify(user_expo))
# # print('alt', user_answer, type(user_answer))
# # for arg in sy.preorder_traversal(user_answer):
# # print(arg)
# else:
# user_base = user_answer.args[0]
# user_expo = user_answer.args[1]
# user_answer = sy.Pow(user_base, sy.simplify(user_expo))
# # print('standard', user_answer, type(user_answer))
# # for arg in sy.preorder_traversal(user_answer):
# # print(arg)
# print(self.answer)
# answer = parse_expr(str(self.answer), transformations=transformations, evaluate=False)
answer = parse_expr(self.answer, transformations=transformations, evaluate=False)
# print('answer stuff', answer, type(answer))
# for arg in sy.preorder_traversal(answer):
# print(arg)
return user_answer == answer
