Osgood, William F. (William Fogg), 1864-1943, Graustein, William C. (William Caspar), 1888-1941, joint author · New York : The Macmillan Company · leaf 561
olatespheroid. Both approach as their limits the sphere, whosecenter is at the origin and whose radius is a, when b is madeto approach a as its limit. The hyperboloids of revolution generated when the hyperbolas (3) r2 /y2 „2 2*^ O TO -^J a 62 ?/a2 -=-1, 62 542 ANALYTIC GEOMETRY situated in the…
