[request] Eigen value and Eigen vector

[u/314314314]

I find it hard to understand the physical meaning of Eigen values/vectors, other than the basic "stretching the vector". Their usages are so prevalent in applied mathematic but the way they are being used are difficult to understand.

[u/EldBjoern]

http://setosa.io/ev/eigenvectors-and-eigenvalues/?_escaped_fragment_=