Python Poly.as_poly Examples

Example #1

File: test_expr.py Project: Botouls/sympy

def test_as_poly_as_expr():
    f = x ** 2 + 2 * x * y

    assert f.as_poly().as_expr() == f
    assert f.as_poly(x, y).as_expr() == f

    assert (f + sin(x)).as_poly(x, y) is None

    p = Poly(f, x, y)

    assert p.as_poly() == p

Example #2

def test_as_poly_as_expr():
    f = x**2 + 2 * x * y

    assert f.as_poly().as_expr() == f
    assert f.as_poly(x, y).as_expr() == f

    assert (f + sin(x)).as_poly(x, y) is None

    p = Poly(f, x, y)

    assert p.as_poly() == p

Example #3

File: test_basic.py Project: KevinGoodsell/sympy

def test_as_poly_basic():
    x, y = symbols('xy')

    f = x**2 + 2*x*y

    assert f.as_poly().as_basic() == f
    assert f.as_poly(x, y).as_basic() == f

    assert (f + sin(x)).as_poly(x, y) is None

    p = Poly(f, x, y)

    assert p.as_poly() == p

Example #4

def test_as_poly_basic():
    x, y = symbols('xy')

    f = x**2 + 2*x*y

    assert f.as_poly().as_basic() == f
    assert f.as_poly(x, y).as_basic() == f

    assert (f + sin(x)).as_poly(x, y) is None

    p = Poly(f, x, y)

    assert p.as_poly() == p