Diagonal Matrix

A diagonal matrix is an n x n matrix with every off diagonal element equal to zero.

This is often written showing just the diagonal elements and the upper-right and lower-left corners with a 0

If we have two matrices such that:

If each element , then
The eigenvalues of D are its main diagonal elements, d1, d2, d3, ......dn

See also: Hankel Matrix, Matrix, Trace.

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Subjects: Mathematics