concave function
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concave function [′kän‚kāv ′fəŋk·shən]

(mathematics)

A functionf(x) is said to be concave over the intervala,bif for any three pointsx₁,x₂,x₃such thata<x₁<x₂<x₃<b, f(x₂)≥L(x₂), whereL(x) is the equation of the straight line passing through the points [x₁,f(x₁)] and [x₃,f(x₃)].

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Concave-down
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concave function (redirected from Concave-down)

concave function
(redirected from Concave-down)