February 10th, 2020 
1. Please use easy sentences and words to answer questions in “Assignment3.
2. Read the question carefully: the question should use “3-2-1 report” format; before doing question 2&3, please read the pdf of lecture 10 carefully; also when you are doing question4, you need to read lecture 11.
3. Please give me in 24 hours. Thanks a lot.
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