| James Atkins Bullard, Arthur Kiernan - Trigonometry - 1922 - 252 pages
...obtained from the following rules given by Napier: In a right spherical triangle, 1. The sine of a **middle part is equal to the product of the cosines of the** opposite parts. 2. The sine of a middle part is equal to the product of the tangents of the adjacent... | |
| Science - 1925 - 726 pages
...Napier's Rules: The five parts are a, b, co c, co a, co ft, where co c = c. The right angle 7 is omitted. **The sine of the middle part is equal to the product of the** tangents of the adjacent parts. The sine of the middle part is equal to the product of the cosines... | |
| Andrew Wheeler Phillips, Wendell Melville Strong - Trigonometry - 1926 - 332 pages
...stated : I. The sine of the middle part is equal to the product of the tangents of the adjacent parts. **II. The sine of the middle part is equal to the product of the cosines of the** opposite parts. 84:. In the right spherical triangles considered in this work, each side is taken less... | |
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