Method _rationalize_if_possible

algorithms/math/polynomial.py:57–72

Convert numbers to Fraction when possible. Args: num: A numeric value. Returns: A Fraction if the input is Rational, otherwise the original value.

(
        num: int | float | Fraction,
    )

    @staticmethod
    def _rationalize_if_possible(
        num: int | float | Fraction,
    ) -> Fraction | float:
        """Convert numbers to Fraction when possible.

        Args:
            num: A numeric value.

        Returns:
            A Fraction if the input is Rational, otherwise the original value.
        """
        if isinstance(num, Rational):
            res = Fraction(num, 1)
            return Fraction(res.numerator, res.denominator)
        else:
            return num

    def equal_upto_scalar(self, other: object) -> bool:
        """Check if other is a monomial equivalent to self up to scalar multiple.