Derivation of Formula for$\operatorname{Tan} \frac{1}{2}$a...

American Mathematical Monthly 1903 / 04 Vol. 10; Iss. 1

Derivation of Formula for$\operatorname{Tan} \frac{1}{2}$a in Spherical Trigonometry

George R. Dean
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Volume:
10
Language:
english
Journal:
The American Mathematical Monthly
DOI:
10.2307/2971131
Date:
April, 1903
File:
PDF, 154 KB
english, 1903
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