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From: radford@calgary.UUCP
Newsgroups: comp.arch
Subject: Calculating logs and exponentials
Message-ID: <937@vaxb.calgary.UUCP>
Date: Tue, 2-Jun-87 15:53:49 EDT
Article-I.D.: vaxb.937
Posted: Tue Jun  2 15:53:49 1987
Date-Received: Fri, 5-Jun-87 00:40:30 EDT
Organization: U. of Calgary, Calgary, Ab.
Lines: 15

I've thought of a nifty algorithm for calculating logarithms and
exponentials, and would like to find out if it's new. If anyone
would like to enlighten me as to the current state of the art in this
area I would appreciate it. References would be nice too.

I already know about polynomials in (1+x)/(1-x). My algorithm just
does two adds and a shift for every bit of precision. This makes it
most appropriate for hardware implementation, or software on a machine
without floating-point hardware.

It's probably best to mail rather than post.

Thanks,

    Radford Neal