Hi Florian,

The restriction Edward described is gone: here's an unboxed vector of ForwardDouble:
<https://gist.github.com/aavogt/6bee72717148123a187c>. But I don't think there's been any work to make hmatrix's Field class have a ForwardDouble instance. I don't know of a ReverseDouble either.

Regards,
Adam

On Mon, May 11, 2015 at 6:24 AM, Florian Hofmann <fhofmann@techfak.uni-bielefeld.de> wrote:
In [1](this) email thread Edward Kmett and Dominic Steinitz discuss the state of interoperability of `ad` and `hmatric` (or `repa`) with Edward hinting that the 4.0 line of `ad` might improve on the situation.

Could someone elaborate on the state of affairs two years later?

Florian


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