The Repository of arts, literature, commerce, manufactures, fashions and politics (1809)
Ackermann, Rudolph, 1764-1834 · London : Published by R. Ackermann ... Sherwood & Co. and Walker & Co. ... and Simpkin & Marshall ... · leaf 408
ble, because ieyafford new relations of algebraicand geometrical quantities. PROBLEM II. Required a general formula forthe radius of curvature of curvesreferred to an axis; and also forthose referred to a fixed point, orspirals, which will enable us tqsolve this curious problem withoutsecond… … Let vm p be the involute curve,and e a point in the evolute. Alsolet Em be the radius of curvatureat the point m, and indefinitelynear to e m draw e p. Draw mnoparallel to the axis v D, and p q per- 523 OBSEItTATIOJfS ON SICIET* pendicular to it. Put the abscissa vt= x, ordinate Tm=^, and…
Fashion · Art, Decorative
Internet Archive · Philadelphia Museum of Art · Public Domain Mark 1.0. Free to use for anything.
