The assignments and the answers of Andrew's Course in coursera.
ex1: Linear Regression
ex2: Logistic Regression
ex3: Multi-class Classification and Neural Networks
ex4: Neural Networks Learning
ex5: Regularized Linear Regression and Bias v.s. Variance
ex6: Support Vector Machines
ex7: K-means Clustering and Principal Component Analysis
ex8: Anomaly Detection and Recommender Systems