cartesian oval造句
例句與造句
- The caustic formed by spherical aberration in this case may therefore be described as the evolute of a Cartesian oval.
- A Cartesian oval is the set of points for each of which the weighted sum of the distances to two given foci is a constant.
- Additionally, if a spherical wavefront is refracted through a spherical lens, or reflected from a concave spherical surface, the refracted or reflected wavefront takes on the shape of a Cartesian oval.
- Early attempts at making aspheric lenses to correct spherical aberration were made by Ren?Descartes in the 1620s, and by Christiaan Huygens in the 1670s; the cross-section of the shape devised by Descartes for this purpose is known as a Cartesian oval.
- The French mathematician Michel Chasles discovered in the 19th century that, if a Cartesian oval is defined by two points and, then there is in general a third point on the same line such that the same oval is also defined by any pair of these three points.
- It's difficult to find cartesian oval in a sentence. 用cartesian oval造句挺難的