def METHOD_NAME():
    x = SpatialCoordinate(triangle)
    xv = (5, 7)
    xx = outer(x, x)
    s1 = sym(2 * xx)
    s2 = (xx + xx.T)
    e = inner(s1, s1)(xv)
    v = inner(s2, s2)(xv)
    assert e == v