QR algorithm

(Despite the name, no QR decompositions are explicitly performed.)
Here’s the link to the Wikipedia article on this topic.
keywords:
[Mathematics]
[ironic name]
[matrix]
[matrices]
[eigenvalue algorithm]
[eigenvalues of a matrix]
[Numerical Linear Algebra]
[orthogonal matrix]
[upper triangular matrix]
[multiply factors in reverse order]
[multiplying factors in reverse order]
[iteration]
[repetition]
[‘rinse and repeat’]