There's also this interactive page for eigen- vectors and values: http://setosa.io/ev/eigenvectors-and-eigenvalues/ http://setosa.io/ev/eigenvectors-and-eigenva

There's also this interactive page for eigen- vectors and values: http://setosa.io/ev/eigenvectors-and-eigenvalues/ http://setosa.io/ev/eigenvectors-and-eigenvalues/ (as well as a sibling for PCA: http://setosa.io/ev/principal-component-analysis/ http://setosa.io/ev/principal-component-analysis/)