CURVE n.
A line described according to some low, and having no finite portion of it a straight line. Axis of a curve. See under Axis. -- Curve of quickest descent. See Brachystochrone. -- Curve tracing (Math.), the process of determining the shape, location, singular points, and other perculiarities of a curve from its equati…
CYLINDRIC; CYLINDRICAL a.
one, cylindrical surface. -- Cylindric, or Cylindrical, surface (Geom.), a surface described by a straight line that moves according to any law, but so as to be constantly parallel to a given line. -- Cylindrical vault. (Arch.) See under Vault, n.