apeforest commented on a change in pull request #14613: [MXNET-978] Higher order gradient support for some unary operators URL: https://github.com/apache/incubator-mxnet/pull/14613#discussion_r290914583
########## File path: tests/python/unittest/test_higher_order_grad.py ########## @@ -15,13 +15,55 @@ # specific language governing permissions and limitations # under the License. -import math +import math from mxnet import nd, autograd -from mxnet.test_utils import assert_almost_equal, random_arrays +from mxnet.test_utils import assert_almost_equal, random_arrays, rand_shape_nd from common import with_seed +@with_seed() +def test_sin(): + def sin(x): + return nd.sin(x) + + def grad_grad_op(x): + return -nd.sin(x) + + for dim in range(1, 5): + shape = rand_shape_nd(dim) + array = random_arrays(shape) + check_second_order_unary(array, sin, grad_grad_op) + + +@with_seed() +def test_cos(): + def cos(x): + return nd.cos(x) + + def grad_grad_op(x): + return -nd.cos(x) + + for dim in range(1, 5): + shape = rand_shape_nd(dim) + array = random_arrays(shape) + check_second_order_unary(array, cos, grad_grad_op) Review comment: This PR is only to support second order gradient. I can add a test later. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
