trace
Sign in to saveAlso known as trace of square matrix, trace of matrix, trace of a matrix
sum of the elements of the main diagonal of a square matrix
~29 min read
Encyclopedic overview
In linear algebra, the trace of a square matrix A, denoted tr(A), is defined as a sum of the elements on its main diagonal,
a
Excerpted from Wikipedia’s “trace” article, available under the CC BY-SA 4.0 licence.