I upload the HW4 solutions here.
Please check and if you have any questions, feel free to tell me.
Also, you can get your HW4 back.
(I put your HW in front of Natural Science building(E6-2) 1314(Prof. sungjae Cho's laboratory))
HW4 solutionsposted Apr 17, 2016, 4:05 AM by 김성호