An encyclopaedia of architecture, historical, theoretical, & practical. New ed., rev., portions rewritten, and with additions by Wyatt Papworth (1888)
Gwilt, Joseph, 1784-1863, Papworth, Wyatt Angelicus Van Sandau, 1822-1894 · London Longmans, Green · leaf 337
r-dinate, cB the abscissa to the paraboliccurve DBC, and let it be required todraw a tangent from the point e in thecurve. Draw e/parallel to DC, cutting Fi;;.456. BC in /: produce cB to g, and make Rg equal to B/, and join ge, then will ge l)e tlietangent required. In the same manner DII will be…
Architecture · Architects
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