Relationship between the Inverses of a Matrix and a Submatrix
نویسندگان
چکیده
A simple and straightforward formula for computing the inverse of a submatrix in terms of the inverse of the original matrix is derived. General formulas for the inverse of submatrices of order n − k as well as block submatrices are derived. The number of additions (or subtractions) and multiplications (or divisions) on the formula is calculated. A variety of numerical results are shown.
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ورودعنوان ژورنال:
- Computación y Sistemas
دوره 20 شماره
صفحات -
تاریخ انتشار 2016