typelevel/spire

Does this work on Breeze data types like DenseMatrix and Densevector

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I am curious to know if the auto differentiation works with datatypes from Breeze project (https://github.com/scalanlp/breeze).
Is there a good resource to look at some examples of using this package.
Thanks for your help

Probably not.

Spire has some form of auto differentiation through the Jet data type; however I don't know which guarantees it offers; given that it's unprincipled, I don't know how it will interact with Breeze -- if it can be made to work with Breeze at all!

Have a look at the Julia ecosystem, which seems to have more robust support for auto differentiation.