Take the 2-minute tour ×
Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. It's 100% free, no registration required.

What are the most important/popular applications of eigenvalues and eigenvectors in practical terms, in fields such as computer science and computer graphics?

Wikipedia does mention some but doesn't really elaborate much.

share|improve this question
add comment

2 Answers

Eigenvectors and eigenvalues are important for understanding the properties of expander graphs, which I understand to have several applications in computer science (such as derandomizing random algorithms). They also give rise to a graph partitioning algorithm.

Perhaps the most famous application, however, is to Google's PageRank algorithm.

share|improve this answer
add comment

PRuler is an iPhone app that lets you measure objects using a credit card and your iPhone camera. I'm told it uses a Singular Value Decomposition (which is very closely related to eigenvalues and eigenvectors)

share|improve this answer
add comment

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.