A software implementation of SLI arithmetic

An implementation of the symmetric level-index (SLI) system, some of its special features, and some computational experience with it are described. The particular implementation discussed was developed for use on IBM-compatible PC machines and is written in Turbo Pascal. This allows many of the attractive features of a potential hardware implementation of SLI arithmetic to be readily incorporated. The ease of performing extended computational operations, such as scalar products and evaluation of polynomials, is evident from the package. The computational experiments reported also show the great simplicity of program structure which this robust arithmetic permits