mlclass-ex1\computeCost.m ...........\computeCostMulti.m ...........\ex1.m ...........\ex1_multi.m ...........\featureNormalize.m ...........\gradientDescent.m ...........\gradientDescentMulti.m ...........\normalEqn.m ...........\plotData.m ...........\submit.m ...........\warmUpExercise.m ...........\ex1data1.txt ...........\ex1data2.txt ex1.pdf