- #1
lathawarrier
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In many books and also in wikipedia, the Trace of a matrix is defined as sum of its diagonal elements. For a general matrix, it does not make much sense, as any element is as important any other element. An alternative definition (in wikipedia for example) is that the Trace of the matrix is the sum of its eigenvalues. Such a definition makes lot of sense. For specialized matrices, for example diagonal matrices, trace (sum of eigenvalues) is the same as the sum of its diagonal elements. For a general matrix, the sum of the diagonal elements is not the sum of its eigen values and so is not the trace of the matrix.
Anyone disagrees?
Anyone disagrees?