def test_sympy_parser():
x = Symbol('x')
inputs = {
'2*x': 2 * x,
'3.00': Float(3),
'22/7': Rational(22, 7),
'2+3j': 2 + 3*I,
'exp(x)': exp(x),
'x!': factorial(x),
'x!!': factorial2(x),
'(x + 1)! - 1': factorial(x + 1) - 1,
'3.[3]': Rational(10, 3),
'.0[3]': Rational(1, 30),
'3.2[3]': Rational(97, 30),
'1.3[12]': Rational(433, 330),
'1 + 3.[3]': Rational(13, 3),
'1 + .0[3]': Rational(31, 30),
'1 + 3.2[3]': Rational(127, 30),
'.[0011]': Rational(1, 909),
'0.1[00102] + 1': Rational(366697, 333330),
'1.[0191]': Rational(10190, 9999),
'10!': 3628800,
'-(2)': -Integer(2),
'[-1, -2, 3]': [Integer(-1), Integer(-2), Integer(3)],
'Symbol("x").free_symbols': x.free_symbols,
"S('S(3).n(n=3)')": 3.00,
'factorint(12, visual=True)': Mul(
Pow(2, 2, evaluate=False),
Pow(3, 1, evaluate=False),
evaluate=False),
'Limit(sin(x), x, 0, dir="-")': Limit(sin(x), x, 0, dir='-'),
}
for text, result in inputs.items():
assert parse_expr(text) == result
def test_sympy_parser():
x = Symbol('x')
inputs = {
'2*x': 2 * x,
'3.00': Float(3),
'22/7': Rational(22, 7),
'2+3j': 2 + 3*I,
'exp(x)': exp(x),
'x!': factorial(x),
'3.[3]': Rational(10, 3),
'10!': 3628800,
'-(2)': -Integer(2),
'[-1, -2, 3]': [Integer(-1), Integer(-2), Integer(3)],
'Symbol("x").free_symbols': x.free_symbols,
"S('S(3).n(n=3)')": 3.00,
'factorint(12, visual=True)': Mul(
Pow(2, 2, evaluate=False),
Pow(3, 1, evaluate=False),
evaluate=False),
'Limit(sin(x), x, 0, dir="-")': Limit(sin(x), x, 0, dir='-'),
}
for text, result in inputs.items():
assert parse_expr(text) == result
def test_sympy_parser():
x = Symbol("x")
inputs = {
"2*x":
2 * x,
"3.00":
Float(3),
"22/7":
Rational(22, 7),
"2+3j":
2 + 3 * I,
"exp(x)":
exp(x),
"x!":
factorial(x),
"x!!":
factorial2(x),
"(x + 1)! - 1":
factorial(x + 1) - 1,
"3.[3]":
Rational(10, 3),
".0[3]":
Rational(1, 30),
"3.2[3]":
Rational(97, 30),
"1.3[12]":
Rational(433, 330),
"1 + 3.[3]":
Rational(13, 3),
"1 + .0[3]":
Rational(31, 30),
"1 + 3.2[3]":
Rational(127, 30),
".[0011]":
Rational(1, 909),
"0.1[00102] + 1":
Rational(366697, 333330),
"1.[0191]":
Rational(10190, 9999),
"10!":
3628800,
"-(2)":
-Integer(2),
"[-1, -2, 3]": [Integer(-1), Integer(-2),
Integer(3)],
'Symbol("x").free_symbols':
x.free_symbols,
"S('S(3).n(n=3)')":
3.00,
"factorint(12, visual=True)":
Mul(Pow(2, 2, evaluate=False),
Pow(3, 1, evaluate=False),
evaluate=False),
'Limit(sin(x), x, 0, dir="-")':
Limit(sin(x), x, 0, dir="-"),
}
for text, result in inputs.items():
assert parse_expr(text) == result
raises(TypeError, lambda: parse_expr("x", standard_transformations))
raises(TypeError, lambda: parse_expr("x", transformations=lambda x, y: 1))
raises(TypeError,
lambda: parse_expr("x", transformations=(lambda x, y: 1,
)))
raises(TypeError, lambda: parse_expr("x", transformations=((), )))
raises(TypeError, lambda: parse_expr("x", {}, [], []))
raises(TypeError, lambda: parse_expr("x", [], [], {}))
raises(TypeError, lambda: parse_expr("x", [], [], {}))