I'm interested in the use/application of the trace of a square matrix?(adsbygoogle = window.adsbygoogle || []).push({});

I am trying to get an intuitive feel for what it 'means' . . .

Along the lines of: for a 2x2 matrix, the determinant represents the area of the parallelogram.

I know it is the sum of the entries of the diagonal of a square matrix, but is there some practical, everyday, easy to understand, example of how the trace is used?

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# Trace of a Square Matrix

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