# Trace

From Conservapedia

The **trace** of a square matrix is the sum of its diagonal values.

The trace of matrix *A* is denoted by:

- tr
*A*

The trace is also equal to the sum of its eigenvalues.

From Conservapedia

The **trace** of a square matrix is the sum of its diagonal values.

The trace of matrix *A* is denoted by:

- tr
*A*

The trace is also equal to the sum of its eigenvalues.