Haswell, Charles Haynes, 1809- [from old catalog] · New York, Harper & brothers · leaf 176
GEOMETRY. 171 To Ascertain, the Length, of* an Elliptic Curve wLxich isless than half of the entire Figure—Fig. 25. (2R; … Let the curve of which the length is re-quired be A b C. Extend the versed sine b d to meet thecentre of the curve in e. Draw the line e C, and from <% with thep distance e 6, describe b h; bisect h C in ?,A * \ and from ?, with the radius e ?*, describe k ?,and it is equal to half the arc A b…
Engineering · Mechanical engineering
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