Haswell, Charles Haynes, 1809- [from old catalog] · New York, Harper & brothers · leaf 173
d bearing upon the string, cany it around the centre o, andit will deseribe the ellipse required.* To Describe an Ellipse of* any G-iven Length, -without re-gard to Breadth—Eig. 13. (13.) Let A B be the given length. Divide it into three equal parts, as A s i B. B With the radius A «, describe the…
Engineering · Mechanical engineering
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