Extended Arithmetic Element

This document is an instruction manual for the KE09A Extended Arithmetic Element (EAE) option for the Digital Equipment Corporation PDP-9 computer. It provides comprehensive technical information on the purpose, installation, and operation of the EAE. The manual covers instructions for high-speed arithmetic operations including multiplication, division, shifting, and normalization, as well as setup and register manipulation commands. Detailed logic function tables, engineering drawing references, and maintenance information are included to support the operation and repair of the EAE module set.