def test_evaluate_at():
cheb = MultiCheb(np.array([[0, 0, 0, 1], [0, 0, 0, 0], [0, 0, 1, 0]]))
value = cheb.evaluate_at((2, 5))
assert (value == 828)
value = cheb.evaluate_at((.25, .5))
assert (np.isclose(value, -.5625))
def test_evaluate_at2():
cheb = MultiCheb(np.array([[0, 0, 0, 1], [0, 0, 0, 0], [0, 0, .5, 0]]))
value = cheb.evaluate_at((2, 5))
assert (np.isclose(value, 656.5))