JAX Introduces HiJAX for Defining Custom Array Types

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JAX, Google's high-performance numerical computing library, has published official documentation on defining custom types using a system called HiJAX. The guide explains how developers can extend JAX's type system to support new array-like objects. This allows custom types to interoperate seamlessly with JAX transformations such as jit, grad, and vmap. The documentation is hosted on JAX's official developer site and serves as a technical reference for library authors and advanced users.

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