| 释义 |
> as lemmashyperbolic branch hyperbolic branch (of a curve): an infinite branch which, like the hyperbola, continually approaches an asymptote (opposed to parabolic). hyperbolic conoid: a conoid of hyperbolic section, a hyperboloid of revolution. †hyperbolic cylindroid: name given by Wren to the hyperboloid of revolution of one sheet. hyperbolic paraboloid: a paraboloid having hyperbolic cross-sections, being concave in one direction and convex in another (like a saddle).< |