Computation times

00:01.849 total execution time for examples_optimization_problem files:

Analytical test case # 2 (plot_simple_opt_2.py)	00:01.085	0.0 MB
Analytical test case # 3 (plot_simple_opt_3.py)	00:00.761	0.0 MB
Analytical test case # 1 (plot_simple_opt_1.py)	00:00.003	0.0 MB