About Eigen values & its importance

What are Eigen values that we come across while using Dimensionality Reduction Techniques?
What is the importance & usage of Eigen values?

Eigenvalues make linear transformation easy. You can read more about them from the below link:

It will also tell you why Eigenvalues are so important.

Good to know more about Eigen values & their importance in Dimensionality Reduction ML techniques.

Appreciate Rajtilak for sharing the linkā€¦!!!