def test_Number():
assert precedence(Integer(0)) == PRECEDENCE["Atom"]
assert precedence(Integer(1)) == PRECEDENCE["Atom"]
assert precedence(Integer(-1)) == PRECEDENCE["Add"]
assert precedence(Integer(10)) == PRECEDENCE["Atom"]
assert precedence(Rational(5, 2)) == PRECEDENCE["Mul"]
assert precedence(Rational(-5, 2)) == PRECEDENCE["Add"]
assert precedence(Real(5)) == PRECEDENCE["Atom"]
assert precedence(Real(-5)) == PRECEDENCE["Add"]
def _eval_apply_evalf(self, arg):
arg = arg.evalf()
if arg.is_Number:
# XXX: Temporary hack. FIX THIS
from sympy.core.numbers import Real
from sympy.mpmath import erf
e = erf(float(arg))
return Real(str(e))
def test_core_numbers():
for c in (Catalan, Catalan(), ComplexInfinity, ComplexInfinity(),
EulerGamma, EulerGamma(), Exp1, Exp1(), GoldenRatio, GoldenRatio(),
Half, Half(), ImaginaryUnit, ImaginaryUnit(), Infinity, Infinity(),
Integer, Integer(2), NaN, NaN(), NegativeInfinity,
NegativeInfinity(), NegativeOne, NegativeOne(), Number, Number(15),
NumberSymbol, NumberSymbol(), One, One(), Pi, Pi(), Rational,
Rational(1,2), Real, Real("1.2"), Zero, Zero()):
check(c)