使用Python写一个用于判断一个点是否在四面体内部

以下是Python代码，用于判断一个点是否在四面体内部：

def is_inside_tetrahedron(point, tetrahedron):
    """
    判断一个点是否在四面体内部
    :param point: 待判断的点，格式为 (x, y, z)
    :param tetrahedron: 四面体的四个顶点，格式为 [(x1, y1, z1), (x2, y2, z2), (x3, y3, z3), (x4, y4, z4)]
    :return: 如果点在四面体内部，返回 True，否则返回 False
    """
    # 计算四面体的体积
    def tetrahedron_volume(a, b, c, d):
        return abs(np.dot(np.cross(b-a, c-a), d-a)) / 6.0

    v1234 = tetrahedron_volume(*tetrahedron)
    v1p34 = tetrahedron_volume(point, tetrahedron[1], tetrahedron[2], tetrahedron[3])
    v2p14 = tetrahedron_volume(point, tetrahedron[0], tetrahedron[2], tetrahedron[3])
    v3p12 = tetrahedron_volume(point, tetrahedron[0], tetrahedron[1], tetrahedron[3])
    v4p23 = tetrahedron_volume(point, tetrahedron[0], tetrahedron[1], tetrahedron[2])

    # 如果点在四面体内部，四个体积之和应该等于四面体的体积
    return abs(v1p34 + v2p14 + v3p12 + v4p23 - v1234) < 1e-6

注意：这个代码使用了 numpy 库，需要先安装。