Python BaseScalarField示例

示例#1

def test_diffgeom():
    from sympy.diffgeom import Manifold, Patch, CoordSystem, BaseScalarField
    m = Manifold('M', 2)
    assert str(m) == "M"
    p = Patch('P', m)
    assert str(p) == "P"
    rect = CoordSystem('rect', p)
    assert str(rect) == "rect"
    b = BaseScalarField(rect, 0)
    assert str(b) == "rect_0"

示例#2

文件： test_str.py 项目： stevenleeS0ht/sympy

def test_diffgeom():
    from sympy.diffgeom import Manifold, Patch, CoordSystem, BaseScalarField
    x,y = symbols('x y', real=True)
    m = Manifold('M', 2)
    assert str(m) == "M"
    p = Patch('P', m)
    assert str(p) == "P"
    rect = CoordSystem('rect', p, [x, y])
    assert str(rect) == "rect"
    b = BaseScalarField(rect, 0)
    assert str(b) == "x"

示例#3

文件： test_repr.py 项目： maurosilber/sympy

def test_diffgeom():
    from sympy.diffgeom import Manifold, Patch, CoordSystem, BaseScalarField
    m = Manifold('M', 2)
    p = Patch('P', m)
    rect = CoordSystem('rect', p)
    assert srepr(
        rect
    ) == "CoordSystem(Str('rect'), Patch(Str('P'), Manifold(Str('M'), Integer(2))), ('rect_0', 'rect_1'))"
    b = BaseScalarField(rect, 0)
    assert srepr(
        b
    ) == "BaseScalarField(CoordSystem(Str('rect'), Patch(Str('P'), Manifold(Str('M'), Integer(2))), ('rect_0', 'rect_1')), Integer(0))"