# tensorplay._C._autograd.backward

Source: https://www.tensorplay.cn/docs/generated/tensorplay._C._autograd.backward.html

# tensorplay._C._autograd.backward

tensorplay._C._autograd.backward(tensors: [collections.abc.Sequence](https://docs.python.org/3/library/collections.abc.html#collections.abc.Sequence)[tensorplay._C.TensorBase], grad_tensors: [collections.abc.Sequence](https://docs.python.org/3/library/collections.abc.html#collections.abc.Sequence)[tensorplay._C.TensorBase] | [None](https://docs.python.org/3/library/constants.html#None) = None, retain_graph: [bool](https://docs.python.org/3/library/functions.html#bool) | [None](https://docs.python.org/3/library/constants.html#None) = None, create_graph: [bool](https://docs.python.org/3/library/functions.html#bool) = False) → [None](https://docs.python.org/3/library/constants.html#None)