| Abstract |
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The Logarithmic Number System (LNS) offers much better performance (in terms of
Power, speed and area) than floating point for multiplication, division, powers and
roots. Moderate-precision addition (of like signs) in LNS generally can be done with table
lookup followed by interpolation, whose implementation can be as, or more, efficient than
the equivalent precision floating-point adder. The problem with LNS is the size of the
table needed for subtratction.
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 Additional Information
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Citation:
Mark G. Arnold,
"Iterative Methods for Logarithmic Subtraction,"
asap,
p. 315,
14th IEEE International Conference on Application-Specific Systems, Architectures and Processors (ASAP'03),
2003
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