The nullspace basis needs to be sparse, well-conditioned, easy to apply. Those criteria are difficult to match together, actually it can be rather ill-conditioned or dense. Paramount among them is ...

A square matrix is one which has equal number of rows and columns, e.g: 2 * 2 matrix. A rectangular matrix is one which has unequal number of rows and columns, e.g: 3 * 2 matrix or 2 * 3 matrix.

Abstract: Modern computers keep following the traditional model of addressing memory linearly for their main memory and out-of-core storage. While this model allows efficient row access to row-major ...

Abstract: This paper is concerned with the solution of linear higher order rectangular differential matrix systems which are appeared in many applications of optimal and filtering control theory. The ...