Re: ATM f/6 21" Status & Questions

[Dominic-Luc Webb molmed <Dominic.Luc-Webb@molmed.ki.se>]

On Wed, 30 Aug 2000, Ken wrote:

> > R - (R^2 - r^2)^(1/2)
> > 
> 
> Ok.  It's been a while.  But I don't see any trib in this equation. 
> Looks like straight algebra to me.

trib = trig I presume (b and g are next to each other 
on the keyboard)...

This is derived from trig. It is not algebra 
although you may use common algebraic techniques 
to arrive at it. I arrived at this from lines 
passing through sections of a circle defined 
by ROC and radius. Solution for sagitta is 
obtained from classical textbook trigonometry.


Cheers,



Dominic

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