Dan Zheng

> Sure it's the Tag: swift-5.3.3-RELEASE Could you try a [trunk development snapshot](https://swift.org/download/#trunk-development-main) instead? Those are tested in the "stock toolchain" migration PRs, be sure to follow the build instructions...

> I'm going to miss asking you obvious questions [I'm still around!](http://bit.ly/dancherp-2021) Feel free to ping or email me anytime :)

> produces the error (tested on s4tf 0.8 and 0.9, gpu and cpu): > > `Precondition failed: cannot move Array.DifferentiableView with count 2 along direction with different count 0: file...

There doesn't exist a "ExpressibleByClosureLiteral" to enable implicit conversion of the `{ z in pow(z, 2) }` expression into a `PythonObject`. More critically, translating Swift expressions/statements within a lambda into...

Calling Swift from Python is a direction we've thought about! That direction is interesting because it allows large Python codebases to incrementally add Swift code, using features like differentiable programming....

The Python TensorFlow optimizer reference implementation use `tf.float32` precision, which should match Swift: https://github.com/tensorflow/swift-apis/blob/b7a9e56efc08f683733433ba3c7eee4966570213/Utilities/ReferenceImplementations/optimizers.py#L16-L17 --- These example `float32` programs produce the exact same output, which give me hope that exact...

> I had hoped that using a tensor of bounds values would produce a tensor where each value was within the corresponding bounds. Does using scalar lower/upper bounds solve your...

> I get the same error even with applying the said work-around. Problem persist on both release and developer versions of S4TF > > ``` > let a: Tensor =...

> looking at current solutions I realize that models in swift are not flexible enough for research purpose. It happens all the time that you need to learn only the...

@t-ae's response https://github.com/tensorflow/swift-apis/issues/691#issuecomment-590707440 is great! - Use `@noDerivative` on stored properties so they don't appear in `TangentVector`. - Use `@noDerivative var c` if you never need derivatives with respect to...