Implementation of Four Common Functions on an LNS Co-Processor

Authors:
Debasish Das;Krishnendu Mukhopadhyaya;Bhabani P. Sinha
Affiliations:
-;-;-
Venue:
IEEE Transactions on Computers
Year:
1995

Citing 4
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Abstract

We propose a scheme for evaluating four commonly used functions namely, (1) inverse trigonometric functions, (2) trigonometric functions, (3) the exponential function, and (4) the logarithmic function with the help of a logarithmic number system (LNS) processor. A novel idea of series folding has been introduced for computing the above functions, expressed in the form of infinite series. We also show that with a suitable choice of the radix for the LNS we can evaluate exponential and logarithmic functions without using any extra hardware