      If yes, compute both analytical and numerical
                     ##                       derivatives and print them to the console for
                     ##                       comparison.
                     ## 
                     ## 		       NOTE: when debugging, do *not* set side = 3,
                     ## 		       but rather to the kind of numerical derivative
                     ## 		       you want to compare the user-analytical one to
                     ## 		       (0, 1, -1, or 