Pierre-Luc Bacon

Our current default solver amounts to [Richardson iteration](https://en.wikipedia.org/wiki/Modified_Richardson_iteration) with scaling factor "omega" equals to 1. Divergence is likely to occur if the spectral radius of df/dx in f(x,theta) = x...

Fixed-point vs zero form

8

I'm not sure what's the best design decision, but it may be confusing for users to have to express a "zero problem" into a "fixed-point" one. Namely, if you want...

Extragradient solver

1

Provide a competitive differentiation solver based on the extragradient/extra-adam method. This should be assigned to @manuel-delverme who has a working implementation.

Packaging all the featurizers within a single library

6

In order to avoid code duplication, it might be useful if you could package all of you existing _featurizers_ within a single library. For the moment, I copied all of...