The word convex means curving out or bulging outward.

Convex or convexity may refer to:

Mathematics:

• Convex set, a set of points containing all line segments between each pair of its points
• Convex function, a function with the epigraph (the set of points lying on or above the graph) forming a convex set
• Convex polygon, a polygon which forms a convex set
• Convex hull, the minimal convex set containing a set of points X
• Convex combination, a linear combination of points with non-negative coefficients that sum up to 1
• Convex conjugate, is a generalization of the Legendre transformation
• Convex optimization

Economics:

• Convex preference relation, a preference relation with convex upper contour sets

Finance:

• Bond convexity, a measure of the sensitivity of the price of a bond to changes in interest rates

Optics:

• Convex lens, a lens with surfaces that curve outward

Art:

• Convex and Concave, a lithograph print by the artist M. C. Escher

Proper names:

• Convex Computer, a company that produced a number of vector supercomputers, bought by HP in 1995

See also

• List of convexity topics
• Concave, the opposite of convex.