convex hull

American  

noun

Mathematics.

1. the smallest convex set containing a given set; the intersection of all convex sets that contain a given set.

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Example Sentences

But even more frustrating is when you know exactly what you want to do, but you can’t figure out how to do it because you do not know how to express it correctly in GIS terms—for example, a “convex hull.”

From Forbes

On the first day of the special session, the politicians discussed abstract things like Reock scores, which measure how well a district could fit in a circle, and Convex Hull scores, which would indicate how a rubber band could stretch around a district.

From Washington Post

Note that the minimum area triangle and the convex hull enclosing the data coincide, and hence no alternative configuration could have a higher degree of triangularity, but it could have the same degree of triangularity.

From Science Magazine

A little to the left of this lever was a small blade of steel, curved to fit the convex hull,—which it hugged closely,—and hinged at its forward edge.

From Project Gutenberg