Computation times

00:01.715 total execution time for examples_optimization_problem files:

Analytical test case # 2 (plot_simple_opt_2.py)	00:00.991	0.0 MB
Analytical test case # 3 (plot_simple_opt_3.py)	00:00.721	0.0 MB
Analytical test case # 1 (plot_simple_opt_1.py)	00:00.003	0.0 MB