Re: and the sine & cosine functions for the NXT

"Steve Lane" <stevenrobertlane@ <"nospamplease>yahoo.co.uk"@ipx11873.ipxserver.de> Fri, 22 Dec 2006 23:40:48 GMT
Newsgroups gmane.comp.hardware.lego.robotics
Organization None
Message-ID <[email protected]>
In lugnet.robotics, Brian Davis wrote:
> In lugnet.robotics, Claude Baumann wrote:
>
>> who is going to draw the first sine and cosine waves on the NXT display?
>
> Well, I've already done that, as well as a nifty display meter, and some other
> stuff that depends on trig functions... but I did it all in NXT-G, without the
> toolbox:
>
> http://www.brickshelf.com/cgi-bin/gallery.cgi?i=1898079
>
> I'm looking forward to trying your custom stuff, however, as my NXT-G trig
> functions (particularly atan()) were getting ugly... How did you implement the
> trig functions (Taylor, lookup, or other)? I didn't use Taylor because of the
> inaccuracy around 90°, but under LV, it might be easier to just push the the
> approximation to better levels.

I'm doing a project using trig, but I was going for computer control. I may be
able to use this though.

Steve