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Subject: Re: Request for simple trig formula
From: Mitch Burrill (MBurrill@XXX.XXX)
Date: Tue Apr 15 2003 - 09:29:03 EDT
take both ratios of the two smaller sides (like, a/b and b/a), the angles are the inverse tangents (atan) of these two numbers.
-----Original Message-----
From: David Weilacher [mailto:daveweilacher@XXX.XXX]
Sent: Tuesday, April 15, 2003 6:04 AM
To: NAVIGATION-L@XXX.XXX
Subject: Request for simple trig formula
I need a favor.
I don't recall the simple trig formulas and don't have the mental where-with-all to find anything using a search engine. I think it is because my mind just doesn't index the way they do.
If I know the lengths of 3 sides of a triangle and one angle (90), how do I determine the two remaining angles.
I do own a fancy calculator capable of sin, cos stuff.
What I would like to come away with are the side-angle-side, angle-side-angle, and side-side-side formulas so that I can write them down in my address book for future reference.
Thank you.
PS: I am attempting to solve a problem indirectly related to navigation.
Dave Weilacher
.US Coast Guard licensed captain
. #889968
.ASA instructor evaluator and celestial
. navigation instructor #990800
.IBM AS400 RPG contract programmer
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