 | Lant Carpenter - Education - 1820 - 514 pages
...of right-angled spherical triangles. Here the short sentence, " the rectangle of the radius and the sine of the middle part, is equal to the rectangle of the tangents of the extremes conjunct, or, of the cosines of the extremes disjunct," enables the calculator... | |
 | Nautical astronomy - 1821 - 708 pages
...'„_ These equations, when applied to-right-angled spheric triangles, signify as before thtit the sine of the middle part is equal to the rectangle of the tangents of the adjacent parts, or to the rectangle of the co-sines of the opposite parts ; but when... | |
 | Edward Riddle - Nautical astronomy - 1824 - 572 pages
...solution of the different cases of right angled spherical triangles are 1. The rectangle of radius and the sine of the middle part is equal to the rectangle of the tangents of the adjoining extremes. 2. The rectangle of radius and the sine of the middle part is equal... | |
 | Nathaniel Bowditch - Nautical astronomy - 1826 - 764 pages
...П1Ш< „art These equations, when applied to right-angled spheric triangles, signify as that the sine of the middle part is equal to the rectangle of the tangents of the ¡ parts, or to the rectangle of the co-sines of the opposite parts ; but when appui... | |
 | Nathaniel Bowditch - Nautical astronomy - 1826 - 732 pages
..., ''These equations, when applied to right-angled «phenc triangles, signify as before, H. that the sine of the middle part is equal to the rectangle of the tangents of the adjacent parts, 01 to the rectangle of the co-eiiies of the opposite parts : but when... | |
 | Thomas Curtis - Aeronautics - 1829 - 878 pages
...С opposite extremes. With these explanations Napier's rules are 1. The rectangle of radius and the sine of the middle part is equal to the rectangle of the tangents of the adjoining extremes. 2. The rectangle of radius and the sine of the middle part is equal... | |
 | Adrien Marie Legendre - Geometry - 1836 - 394 pages
...triangles, which it must be remembered apply to the circular parts, as already defined. 1st. Radius into the sine of the middle part is equal to the rectangle of the tangents of the adjacent parts. 2d. Radius into the sine of the middle part is equal to the rectangle... | |
 | Charles William Hackley - Trigonometry - 1838 - 338 pages
...middle part is equal to the rectangle of the tangents of the adjacent parts. 2. Radius multiplied by the sine of the middle part is equal to the rectangle of the cosines of the opposite parts. Or both rules may be given thus : radius into the sine of the middle part = the rectangle of... | |
 | Charles William Hackley - Trigonometry - 1838 - 328 pages
...angled triangle may be expressed in the two following rules of Napier : 1. Radius multiplied by the sine of the middle part is equal to the rectangle of the tangents of the adjacent parts. 2. Radius multiplied by the sine of the middle part is equal to the... | |
 | Enoch Lewis - Conic sections - 1844 - 234 pages
...the sine of the middle part is equal to the rectangle of the tangents of the adjacent extremes. 99 part is equal to the rectangle of the cosines of the opposite extremes. These rules may be explained and demonstrated in the following manner : c Let ABC be the triangle,... | |
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The rectangle of the radius, and sine of the middle part, is equal to the rectangle of the tangents of the two EXTREMES CONJUNCT, and to that of the cosines of the two EXTREMES DISJUNCT. 
