Graeme Kennedy

Implement a method to check derivatives

1

It would be handy to implement a method to check derivatives directly in pyOptSparse. SNOPT implements a derivative checker, but not everyone has access to this optimizer. A simple check...

Add dense and sparse wrappers for ParOpt from ParOpt directly

6

## Purpose This PR adds the ParOpt sparse and dense constraint wrappers for pyOptSparse from ParOpt directly. ## Expected time until merged ## Type of change - [ ] Bugfix...