The paper analyzes the properties of the controller coefficient perturbation resulting from using finite word length (FWL) block-floating-point arithmetic and investigates the closed-loop stability issue of finite-precision realizations for digital controllers implemented in block-floating-point format. A true FWL closed-loop stability measure is derived which considers both the dynamic range a...

in this paper, an effective numerical method is introduced for the treatment of nonlinear two-dimensional volterra-fredholm integro-differential equations. here, we use the so-called two-dimensional block-pulse functions.first, the two-dimensional block-pulse operational matrix of integration and differentiation has been presented. then, by using this matrices, the nonlinear two-dimensional vol...

Cache optimization is a crucial technique for most numerical code to exploit the performance of modern processors. It can be classified into improving access locality, and prefetching. Inherent algorithm constrains often limit the first approach which typically uses a blocking technique. While there exist automatic prefetching mechanism in hardware and/or compilers, they can not complement bloc...