Chris Zimmerman

I'd love to add these in. Primary issue is figuring out how to back propagate along layers that need more than one gradient. This will probably require more `Num::Grad` work...

Definitely not on par with Tensorflow, but I added a [pure Crystal autograd/neural net implementation](https://github.com/crystal-data/num.cr/tree/master/src/nn) to Num.cr. I am still working on adding more advanced features, but it has most...

I have a [PR](https://github.com/crystal-data/num.cr/pull/45) out that adds these to `Num.cr`, including plenty of utils to convert between types and dense `Tensor`s. I just need to figure out what linear algebra...

I have started work on this: https://github.com/crystal-data/arrow.cr. I plan to make it fairly similar to the `Ruby` implementation, which also uses GObject Introspection. Here is a mini example with basically...

The OpenCV C api at least has been deprecated for many years, so bindings would have to be based off the C++ api. A much easier alternative might be binding...

Just adding [bottle](https://github.com/crystal-data/bottle) here. I've only gotten to a few of scipy's features, but they are in the roadmap, and I do implement an N-Dimensional Tensor which is really useful.

I have a good start on a library inspired by numpy, it's called [bottle](https://github.com/crystal-data/bottle). I am still looking for contributors, it's just me currently, but I have an N-Dimensional container...

@drum445 I went through and took your financial work and added them all as [vectorized methods to my library](https://github.com/crystal-data/bottle/blob/master/src/financial/simple.cr), they worked great! You basically have all of numpys financial methods,...

Thanks for the issue. Yea, this probably isn’t ideal API design. For any method that uses internal Crystal operators, the compiler knows what type is produced by a Float and...

Would you mind opening a separate issue for fixed sizes Tensors? And if you have any, provide a link to what you’re referencing in C++? Compile time bounds checking and...