Python sdm_to_vector示例

示例#1

文件： test_distributedmodules.py 项目： BDGLunde/sympy

def test_conversion():
    f = [x**2 + y**2, 2*z]
    g = [((1, 0, 0, 1), QQ(2)), ((0, 2, 0, 0), QQ(1)), ((0, 0, 2, 0), QQ(1))]
    assert sdm_to_vector(g, [x, y, z], QQ) == f
    assert sdm_from_vector(f, lex, QQ) == g
    assert sdm_from_vector([x, 1], lex, QQ) == [((1, 0), QQ(1)), ((0, 1), QQ(1))]
    assert sdm_to_vector([((1, 1, 0, 0), 1)], [x, y, z], QQ, n=3) == [0, x, 0]
    assert sdm_from_vector([0, 0], lex, QQ, gens=[x, y]) == sdm_zero()

示例#2

文件： test_distributedmodules.py 项目： wuxi20/Pythonista

def test_conversion():
    f = [x**2 + y**2, 2 * z]
    g = [((1, 0, 0, 1), QQ(2)), ((0, 2, 0, 0), QQ(1)), ((0, 0, 2, 0), QQ(1))]
    assert sdm_to_vector(g, [x, y, z], QQ) == f
    assert sdm_from_vector(f, lex, QQ) == g
    assert sdm_from_vector([x, 1], lex, QQ) == [((1, 0), QQ(1)),
                                                ((0, 1), QQ(1))]
    assert sdm_to_vector([((1, 1, 0, 0), 1)], [x, y, z], QQ, n=3) == [0, x, 0]
    assert sdm_from_vector([0, 0], lex, QQ, gens=[x, y]) == sdm_zero()