International Journal of applied mathematics and computer science

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Paper details

Number 4 - December 1993
Volume 3 - 1993

Inverse polynomial matrix approximation

Jerzy Kisilewicz

A computational algorithm for matrix C(z) which approximates the inverse of a given matrix Y(z) is described in this paper. Finite degree polynomials as the entries of the matrices C(z) and Y(z) are assumed. The sum of squares of coefficients of polynomials, which are the elements of difference C(z)Y(z) – Iz–h is assumed as a criterion of the approximation quality, where I is an adequate unit matrix.