Beispiel #1
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 def from_sympy(self, a):
     """Convert SymPy's Rational to `dtype`. """
     if a.is_Rational and a.q != 0:
         return PythonRationalType(a.p, a.q)
     elif a.is_Float:
         from sympy.polys.domains import RR
         return PythonRationalType(*RR.as_integer_ratio(a))
     else:
         raise CoercionFailed("expected `Rational` object, got %s" % a)
Beispiel #2
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 def from_RR_mpmath(K1, a, K0):
     """Convert a mpmath `mpf` object to `dtype`. """
     return PythonRationalType(*K0.as_integer_ratio(a))
Beispiel #3
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 def from_RR_sympy(K1, a, K0):
     """Convert a SymPy `Float` object to `dtype`. """
     return PythonRationalType(*K0.as_integer_ratio(a))
Beispiel #4
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 def from_QQ_gmpy(K1, a, K0):
     """Convert a GMPY `mpq` object to `dtype`. """
     return PythonRationalType(PythonIntegerType(a.numer()),
                               PythonIntegerType(a.denom()))
Beispiel #5
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 def from_ZZ_gmpy(K1, a, K0):
     """Convert a GMPY `mpz` object to `dtype`. """
     return PythonRationalType(PythonIntegerType(a))
Beispiel #6
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 def from_QQ_sympy(K1, a, K0):
     """Convert a SymPy `Rational` object to `dtype`. """
     return PythonRationalType(a.p, a.q)
Beispiel #7
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 def from_ZZ_sympy(K1, a, K0):
     """Convert a SymPy `Integer` object to `dtype`. """
     return PythonRationalType(a.p)
Beispiel #8
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 def from_ZZ_python(K1, a, K0):
     """Convert a Python `int` object to `dtype`. """
     return PythonRationalType(a)