Origin of convexClassical Latin convexus, vaulted, arched, past participle of convehere, to bring together from com-, together + vehere, to bring: see way
An example of convex is the shape of the lens in eyeglasses.
Origin of convexLatin convexus ; see wegh- in Indo-European roots.
left to right: biconvex,
(comparative more convex, superlative most convex)
- curved or bowed outward like the outside of a bowl or sphere or circle
- (mathematics, not comparable, of a set) arranged such that for any two points in the set, a straight line between the two points is contained within the set.
- (functional analysis, not comparable, of a real-valued function on the reals) having an epigraph which is a convex set.
From Middle French convexe, from Latin convexus (“arched”).
- The irregularity of spacing has thus the effect of a convex lens, which accelerates the marginal relatively to the central rays.
- In diameter, sessile, and generally in pairs, and are made up of large angular scales, slightly convex exteriorly, and with a sharp point in the centre.
- In the disk plough, which is built both as a riding and a walking plough, the essential feature is the substitution of a concavo convex disk, pivoted on the plough beam, for the mould-board and share of the ordinary plough.
- Convex spectacles were invented towards the end of the 13th century.
- Most of the permeability-temperature curves were more or less convex towards the axis of temperature, and in all the experiments except those with annealed iron and steel wire, the permeability was greatest at the lowest temperature.