UFLDL-tutorial/sparseae_exercise at master · DeercoderResearch/UFLDL-tutorial · GitHub

Name		Name	Last commit message	Last commit date
parent directory ..
IMAGES.mat		IMAGES.mat
README.md		README.md
checkNumericalGradient.m		checkNumericalGradient.m
sampleIMAGES.m		sampleIMAGES.m
train.m		train.m

README.md

This also doubles as the solution to the vectorization exercise because this is already vectorized.