(z)
return simp
Create a function that simplifies rational functions in ``z``.
Create a function that simplifies rational functions in ``z``.
Create a function that simplifies rational functions in z .
def make_simp(z):
    """ Create a function that simplifies rational functions in ``z``. """

    def simp(expr):
        """ Efficiently simplify the rational function ``expr``. """
        numer, denom = expr.as_numer_denom()
        c, numer, denom = poly(numer, z).cancel(poly(denom, z))
        return c * numer.as_expr() / denom.as_expr()

    return simp
def make_simp ( z ) : def simp ( expr ) : """ Efficiently simplify the rational function ``expr``. """ numer , denom = expr . as_numer_denom ( ) c , numer , denom = poly ( numer , z ) . cancel ( poly ( denom , z ) ) return c * numer . as_expr ( ) / denom . as_expr ( ) return simp