These tests use the synthetic data back calculated for the model-free parameter values of {S2=0.970,
te=2048, Rex=0.149}.
The following optimisation techniques are currently tested:
Grid search.
Steepest descent, backtracking line search.
Steepest descent, More and Thuente line search.
Coordinate descent, backtracking line search.
Coordinate descent, More and Thuente line search.
BFGS, backtracking line search.
BFGS, More and Thuente line search.
Newton, GMW Hessian modification, backtracking line search.
Newton, GMW Hessian modification, More and Thuente line search.
