-=> Quoting David Williams to Rick Pedley <=-
 DW> I'm getting carried away with this. Where are the men in white
 DW> coats?... 
 DW> I coded up the cosine-rule method. It's not too bad. Just two SQRs and
 DW> one ATN in the actual calculation, plus one ATN to find pi.
 DW> 100 'calculate angle defined by x,y of 3 points
Thanks for posting. It would be useful had the original poster told
us exactly what he needed it for. BTW, I notice you're using line
numbers here; is that your usual practice or is this older code you 
have modified?
--- Blue Wave/DOS v2.20
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