On Thu, 10 Aug 2017 05:43:48 -0400 Luke Kenneth Casson Leighton lkcl@lkcl.net wrote:
https://math.stackexchange.com/ (bla)
hiya david: okay! so someone kindly edited the question to put the proper links in, so the question's actually understandable.
so... benson.... with the diagrams that aretino kindly added, i was able to not only understand what he was saying, but, also, understood it well enough to appreciate that *your* answer is correct :)
aretino recommends using arccos instead of arcsin.
Luke, just getting through my emails, does this mean that you have your problem solved or were you referring this info for my benefit?
Thanks, David