en Congruent transformation

In mathematics, a congruent transformation (or congruence transformation) is:

Another term for an isometry; see congruence (geometry).
A transformation of the form A → P^TAP, where A and P are square matrices, P is invertible, and P^T denotes the transpose of P; see Matrix Congruence and congruence in linear algebra.

This disambiguation page lists articles associated with the title Congruent transformation.
If an internal link led you here, you may wish to change the link to point directly to the intended article.