The meaning of CONVEX is curved or rounded outward like the exterior of a sphere or circle. How to use convex in a sentence.

A twice differentiable function of several variables is convex on a convex set if and only if its Hessian matrix of second partial derivatives is positive semidefinite on the interior of the …

Sep 9, 2023 · Concave lenses focus light inside the curve of the lens, while convex lenses focus light using the outer curve. A lens that curves like a “C” (no flat side) is both concave or …

Jul 3, 2025 · In mathematics, convex and concave functions describe how curves behave in terms of their curvature. A convex function curves upwards, meaning that a straight line between any …

Add to word list curved or swelling out: a convex lens (Definition of convex from the Cambridge Academic Content Dictionary © Cambridge University Press)

Convex definition: having a surface that is curved or rounded outward.. See examples of CONVEX used in a sentence.

Nov 14, 2025 · A convex function is a continuous function whose value at the midpoint of every interval in its domain does not exceed the arithmetic mean of its values at the ends of the interval.

Illustrated definition of Convex: Going outwards. Example: A polygon (which has straight sides) is convex when there are NO dents or indentations...

(General Physics) physics having one or two surfaces curved or ground in the shape of a section of the exterior of a sphere, paraboloid, ellipsoid, etc: a convex lens.

Convex is used to describe something that curves outwards in the middle. ...the large convex mirror above the fireplace.