CORDICs are primarily used to approximate SIN functions. See

http://www.brouhaha.com/~eric/pic/sine.html (Implementing Sine on the PIC w/
source)

http://www.virtuaweb.com/picprog/links.html (link pg. to all sorts of PIC
code)

http://www.chu.cam.ac.uk/home/lk213/comp_fix.html (theory with examples in C
and x86 ASM)

and others at
http://204.210.50.240/techref/default.asp?url=method/math.htm

James Newton mailto:jamesnewton@geocities.com phone:1-619-652-0593
http://techref.homepage.com NOW OPEN (R/O) TO NON-MEMBERS!
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-----Original Message-----
From: pic microcontroller discussion list
[mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Dr. Imre Bartfai
Sent: Friday, December 10, 1999 2:55 AM
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: Look for CORDIC methods... Re: [OT] Mathematical question


hi,
xcus for the dumb question, but: what is the CORDIC method and where can I
find a short description?

Regards,
Imre


On Thu, 9 Dec 1999, Dmitry Kiryashov wrote:

> Hi Quentin. Try to search CORDIC calculation methods - it is possible
> to calculate alot of functions with required precisions without table
> look up and for suitable number of iterations.
>
> WBR Dmitry.
>
> Quentin wrote:
> > You will see that while X is linear, Y is not (Log??). With these
> > information available, how would I calculate Y for all the other
> > values of X? I want to use it in a lookup table in the PIC.
> > Thanks
> > Quentin
>
>