یه وقتایی یه کاری رو انجام نمیدی که میدونی بعداً حسرتشو خواهی خورد...
Just for the record:
“Explosions in the sky” concert in Amsterdam, 2007.02.25.
And I am writing “Dynamical System” 3rd example sheet about standard map and its p-Cycles, manifolds and Lyapunov exponent.