Random
Objective: `[[a,b],[c,d]]` `(d^3 θ)/dt^3 =(dθ_3)/dt` `[(dot θ_1 ) ,(dot θ _2 )] = [(θ_2),(-b/m θ_2-g/l sinθ_2 )]`
Your portfolio, nextShip work like this
Objective: `[[a,b],[c,d]]` `(d^3 θ)/dt^3 =(dθ_3)/dt` `[(dot θ_1 ) ,(dot θ _2 )] = [(θ_2),(-b/m θ_2-g/l sinθ_2 )]`