This time I think this lab is the most difficult lab I never do for now because I’m not good at function and even I didn’t finish the whole exercise too so I left one question in there and in a time I still didn’t have a time to do it. Therefore I left behind, but I still didn’t give up and asking all my classmate for help, however they didn’t know how to help me for it. Finally, the last things I do is asking my professor he is very nice and good also he tell me to send those question into his email because he didn’t have time to discuss with me so I follow his order and do it. At last, he help me fixing my code then in that time I finally done this practice or exercise so I feel very happy and relax. Therefore that is the reason why I will say this is a really hard lab also make me having a very hard time too.