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EntityQ321102· pop 42· linked from 457 articles

Also 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

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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.