Nx.slice/3 lengths parameter fails inside defn while about nx HOT 2 CLOSED

You are trying to pass tensors as slice lengths, and that is not supported. This is because Nx doesn't currently support dynamic shapes

from nx.

Upon re-reading the issue, I believe dynamic length means "passed as an argument". If that's the case, you can pass it via a keyword option list as a literal number:

defn f(a, opts \\ []) do
opts = keyword!(opts, [:window_dims])

{m, n} = opts[:window_dims]
...

As I had read before, I had interpreted dynamic as depending on the tensor values, which is what prompted my first response.

from nx.