Nystrom, John W. (John William), 1824-1885 · Philadelphia, J.B. Lippincott · leaf 96
ircle arc about b, take a B as radius and / ascentre describe another circle arc about 6, thenthe intersection b is a point in the ellipse, andso the whole ellipse can be constructed. 42. To draw an ellipse that will tangent twoparallel lines in A and B. Draw a semicircle on A B, draw ordinatesin… … 43. To construct a cycloid. The circumference C=3-14 D. Divide therolling circle and base line C into a numberof equal parts, draw through the divisionpoint the ordinates and abscissas, make a a= 1 d,b &=2 e, c c =3/, then a b and d arepoints in the cycloid. In the Epicycloid, andHypocycloid…
Mechanical engineering · Engineering
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