Given a square matrix, calculate the absolute difference between the sums of its diagonals. For example, the square matrix is shown below: ...

There are several methods to calculate the inverse matrix. Below, we outline two common approaches: finding the adjugate matrix and using Gaussian elimination. a) Finding the Adjugate Matrix For a 2×2 ...

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A procedure is presented for rapidly computing the diagnonal elements of a large numerator relationship matrix, say $\mathbf {A}$. It also generates a lower triangular matrix, say $\mathbf {L}$, ...

Find n order real five--diagonal matrices B, such that the establishment of three equations with matrix B and the known information. Where, B are the matrices with proportional relation on minor ...

This paper proposes a novel shrinkage estimator for high-dimensional covariance matrices by extending the Oracle Approximating Shrinkage (OAS) of Chen et al. (2009) to target the diagonal elements of ...