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Re: Calculator Time and Angle Work
From: Bill B
Date: 2017 Sep 3, 14:52 -0400

On 9/3/2017 1:18 PM, Marty Lyons wrote:
> Can anyone suggest a handheld calculator that can add and subtract time
> and angles in degrees:minutes, fairly easily?
>
> 
> 
>
The TI-30Xa is about as simple as it comes. You can directly enter in
degrees, minutes and and seconds and convert to decimal degrees with two
key strokes and vice versa. With three memories you can enter Lat, LHA
and declination then calculate Hc in a seconds. Substitute Hc in one
memory and you are good to go for azimuth. The solar version is
considerably more painful IMHO.

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