Alex Dowling

The idea originates in the #81 discussion. Specifically, we want to check the number of iterations. Code from @andrewlee94: ``` from pyomo.contrib.parmest.ipopt_solver_wrapper import ipopt_solve_with_stats ```

Extract Jacobian for equality constraints then embed symbolic expressions in constraints

6

## Summary I have a square Pyomo model with equality constraints $h(y,p) = 0$. I want to compute $\nabla_y h$ and $\nabla_p h$ for this model and then embed those...

parmest: allow user to specify path to ipopt executable

3

This would be a nice enhancement for folks with multiple versions of Ipopt installed. Alternately, we could let the user provide an Ipopt solver object.

Pyomo.DoE/ParmEst software design Decision: Where to locate shared code to compute Jacobian

1

## Summary ParmEst/Pyomo.DoE both need capabilities to compute the Jacobian of the measurement outputs with respect to parameters. This can be done several ways: 1. Finite difference 2. AD with...

Pyomo.DoE: Handle edge case where the nominal value for a parameter is zero

1

## Fixes # . ## Summary/Motivation: - If a parameter has a nominal value of zero, we will get a divide by zero error when calling `compute_FIM` ## Changes proposed...

Minor update to logic in Degeneracy Hunter

9

## Fixes ## Summary/Motivation: - If the IDS problem is infeasible, it means the constraint is not a major component of an IDS - Logic was incorrect ## Changes proposed...

## Summary When using the DAE simulator (e.g., CasADi), extract the adaptive time steps from `cvodes` or `idas` integrator. ### Rationale For stiff systems, it is increadibly helpful to get...