Function float2rational

SLiCAP/SLiCAPmath.py:1841–1862

Converts floats in expr into rational numbers. :param expr: Sympy expression in which floats need to be converterd into rational numbers. :type expr: sympy.Expression :return: expression in which floats have been replaced with rational numbers. :rtype: sympy.

(expr)

    return voltage

def float2rational(expr):
    """
    Converts floats in expr into rational numbers.

    :param expr: Sympy expression in which floats need to be converterd into
                 rational numbers.
    :type expr: sympy.Expression

    :return: expression in which floats have been replaced with rational numbers.
    :rtype:  sympy.Expression
    """
    if type(expr) == int:
        pass
    elif type(expr) == float:
        expr = sp.Rational(expr)
    else:
        try:
            expr = expr.xreplace({n: sp.Rational(str(n))
                                 for n in expr.atoms(sp.Float)})
        except AttributeError:
            pass
    return expr

def rational2float(expr):
    """