Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!linus!decvax!harpo!floyd!clyde!ihnp4!inuxc!pur-ee!uiucdcs!uiuccsb!grunwald
From: grunwald@uiuccsb.UUCP
Newsgroups: net.unix-wizards
Subject: Re: SDLC CRC in C? - (nf)
Message-ID: <3702@uiucdcs.UUCP>
Date: Mon, 7-Nov-83 23:07:31 EST
Article-I.D.: uiucdcs.3702
Posted: Mon Nov  7 23:07:31 1983
Date-Received: Thu, 10-Nov-83 00:02:22 EST
Lines: 18

#R:sri-arpa:-1308600:uiuccsb:14900004:000:682
uiuccsb!grunwald    Nov  6 17:37:00 1983

re: computing sin and cos using the POLY op-code

Wouldn't it be better to compute the sin and cos using the CORDIC method? I
would think that this would give you much better results than using the taylor
series expansion (which is what I assume you're using the POLY for). Or is
there some problem with this (I've just done CORDIC routines for fixed point
fractions, not floating point -- so the range arctangents you need to store
is much smaller. However, combining the CORDIC with a small-angle approxim-
ation would seem to work).

Keep those letters and cards coming...
Dirk Grunwald
University of Illinois
USENET	: ihnp4 ! uiucdcs ! grunwald
CSNET	: grunwald.uiuc@Rand-Relay