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I like my Casio fx-250 very much, but I am interested
whether there exists a better calculators (from MY point of view!)
for solving
nav triangle.
On my opinion, the following features are crucial:

a) sexagesimal input (degrees/minutes/seconds) and output,
b) at least 3 independent memories (Casio has only one).
c) dual power (solar and battery).

The last requirement excludes bulky, heavy
and expensive things with graphical displays hudge memory, etc.,
of the type Celestaire sells.

Does there exist a calculator satisfying a), b) and c)?
Alex.

   

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