Chaotic conditions non linear pendulum

Good day everyone! This mini project is very simple (shouldn't take less than one hour...possibly even shorter)! Therefore I'm only offering $20 (extra $5 if done within 4 hours)! I have a mini project on a non-linear pendulum which i have near completed... HOWEVER I CANNOT GET GRAPHS ILLUSTRATING CHAOTIC CONDITIONS (SEE PDF BELOW) The code which i will provide (when project is agreed with freelancer) is 100% correct. I am NOT ALLOWED to change the LENGTH of the pendulum string, its fixed at 0.961m. If i was allowed to change the length of the pendulum then i would have completed this project by now as i can get chaotic motion when i set the length equal to 9.81m :( i believe if one changed the angular driving frequency in increments they may be able to find chaotic conditions or changed some of the INITIAL CONDITIONS. (Or likewise if they changed the driving force) The PDF document below shows the 2 desired graphs I am looking for (or of similar nature as long as they show CHAOS conditions)