 | Charles Hutton - Mathematics - 1811 - 404 pages
...171. PROBLEM IX. Given the Measure of a Base on any Elevated evel; to find its Measure when Reduced to the Level of the Sea. Let r represent the radius of the earth, or the distance from its centre to the surface of the sea, r + h the radius referred to the level of the... | |
 | Charles Hutton - Arithmetic - 1818 - 652 pages
...PROBLEM IX. Д Given the Measure of a Base on any Elevated Level ; to find its Measure when Reduced to the Level of the Sea. Let r represent the radius of the earth, or the distance from its centre to the surface of the sea, г + A the radius referred to the level of... | |
 | Charles Hutton - Mathematics - 1831 - 656 pages
...required. PROBLEM IX. Given the measure of n base on any elevated level ; to. find its measure when reduced to the level of the sea. Let r represent the radius of the earth, or the distance from its centre to the surface of the sea, r •{- h the radios referred to the level... | |
 | Charles Hutton - Mathematics - 1831 - 662 pages
...PROBLEM IX. Given the measure of a base on any elevated level ; to find its measure when reduced lo the level of the sea. Let r represent the radius of the earth, or the distance from its centre to the surface of the sea, r + A the radius referred to the level of the... | |
 | United States. Army. Corps of Engineers - Military engineering - 1873 - 350 pages
...(Y—ß) _ a+¿> , a — b 2 2 COS XXXI.— To Reduce a Measured Base to the Level of the ßea. • Let— r represent the radius of the earth (or better,...radius referred to the level of the measured base B, then— and— r+a -4- = В x (- - ", + etc. r + a \r г But the radius of the earth being very great... | |
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to the level of the sea. Let r represent the radius of the Earth (or better, the normal N,) corresponding to the base b at the level of the sea, and r -\- a the radius referred to the level of the measured base B, 