Compressed symmetric tables for accurate function approximation of reciprocals

摘要

This paper presents a high-speed method for accurate function approximations of reciprocals. This method employs parallel table lookups followed by multi-operand addition. Similar to previous methods, it takes advantage of leading zeros and symmetry in the table entries to reduce the table sizes. This method, although similar to previous methods, achieves lower memory sizes without having to increase the number of operands in the multi-operand addition.