Feature Requests: Built-In Constraints

[kecnry]

This is the place to request/discuss support for new built-in constraints.

A list of currently supported (default and optional) constraints can be found in the phoebe.constraints API docs and custom constraints have been supported since v 2.3.30.

[kecnry]

Support for numpy math operators (sin, cos, sqrt), which in turn would allow for custom constraints line sqrt(e) cos(w)

[kecnry]

RV semi-amplitude

[kecnry]

vsini (this gets a little complicated in how exactly to define it - equatorial, maximum r, flux-weighted, etc)

See #944 for removed commented-out code that started implementing this.