Example #1
0
def test_dmp_permute():
    f = dmp_normal([[1,0,0],[],[1,0],[],[1]], 1, ZZ)
    g = dmp_normal([[1,0,0,0,0],[1,0,0],[1]], 1, ZZ)

    assert dmp_permute(f, [0, 1], 1, ZZ) == f
    assert dmp_permute(g, [0, 1], 1, ZZ) == g

    assert dmp_permute(f, [1, 0], 1, ZZ) == g
    assert dmp_permute(g, [1, 0], 1, ZZ) == f
Example #2
0
    def permute(f, P):
        r"""
        Returns a polynomial in ``K[x_{P(1)}, ..., x_{P(n)}]``.

        **Example**

        >>> from sympy.polys.polyclasses import DMP
        >>> from sympy.polys.domains import ZZ

        >>> DMP([[[ZZ(2)], [ZZ(1), ZZ(0)]], [[]]], ZZ).permute([1, 0, 2])
        DMP([[[2], []], [[1, 0], []]], ZZ)

        >>> DMP([[[ZZ(2)], [ZZ(1), ZZ(0)]], [[]]], ZZ).permute([1, 2, 0])
        DMP([[[1], []], [[2, 0], []]], ZZ)

        """
        return f.per(dmp_permute(f.rep, P, f.lev, f.dom))
Example #3
0
    def permute(f, P):
        r"""
        Returns a polynomial in ``K[x_{P(1)}, ..., x_{P(n)}]``.

        **Example**

        >>> from sympy.polys.polyclasses import DMP
        >>> from sympy.polys.domains import ZZ

        >>> DMP([[[ZZ(2)], [ZZ(1), ZZ(0)]], [[]]], ZZ).permute([1, 0, 2])
        DMP([[[2], []], [[1, 0], []]], ZZ)

        >>> DMP([[[ZZ(2)], [ZZ(1), ZZ(0)]], [[]]], ZZ).permute([1, 2, 0])
        DMP([[[1], []], [[2, 0], []]], ZZ)

        """
        return f.per(dmp_permute(f.rep, P, f.lev, f.dom))