> >> Sorry for my ignorance -- I'm a bit confused. Has the use of this >> gauge been discussed in any detail previously on the list? If so I'll >> dig into the archives. > when I first heard of the sine*tension approach which doesn't use any distance measurements, I was mystified at how it could work. It does in fact work, as I proved to myself by comparing the result against my very long Dave Roberts style downbearing calc spreadsheet. I guess it turns out the the calc uses vectors rather than the high school trig we are usually use. Geeks who understand vectors seem to do all kinds of cool and bizarre things with them... Jim I -- Jim Ialeggio grandpianosolutions.com 978- 425-9026 Shirley, MA
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