Issue No. 12 - December (1975 vol. 24)
E.E. Swartzlander , TRW Systems
A signed logarithmic number system, which is capable of representing negative as well as positive numbers is described. A number is represented in the sign/logarithm number system by a sign bit and the logarithm of the absolute value of the number (scaled to avoid negative logarithms).
Computer arithmetic units, logarithmic addition, logarithmic arithmetic, logarithmic subtraction, number systems.
A.G. Alexopoulos, E.E. Swartzlander, "The Sign/Logarithm Number System", IEEE Transactions on Computers, vol. 24, no. , pp. 1238-1242, December 1975, doi:10.1109/T-C.1975.224172