http://www.ifp.illinois.edu/~angelia/L3_convfunc.pdf WebMar 24, 2024 · 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 …
soft question - Why does "convex function" mean …
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Concave Up (Convex), Down (Function) - Statistics How …
Web1 Warm-up 1. Prove that there is an integer Nsuch that no matter how Npoints are placed in the plane, with no 3 ... You can combine basic convex functions to build more … WebConcavity and convexity are opposite sides of the same coin. So if a segment of a function can be described as concave up, it could also be described as convex down. We find it convenient to pick a standard terminology and run with it - and in this case concave up and concave down were chosen to describe the direction of the concavity/convexity. In mathematics, a real-valued function is called convex if the line segment between any two distinct points on the graph of the function lies above the graph between the two points. Equivalently, a function is convex if its epigraph (the set of points on or above the graph of the function) is a convex set. A twice … See more Let $${\displaystyle X}$$ be a convex subset of a real vector space and let $${\displaystyle f:X\to \mathbb {R} }$$ be a function. Then $${\displaystyle f}$$ is called convex if and only if any of … See more The term convex is often referred to as convex down or concave upward, and the term concave is often referred as concave down or convex upward. If the term "convex" is used without an "up" or "down" keyword, then it refers strictly to a cup shaped graph See more Functions of one variable • The function $${\displaystyle f(x)=x^{2}}$$ has $${\displaystyle f''(x)=2>0}$$, so f is a convex function. It is also strongly convex (and hence strictly convex too), with strong convexity constant 2. • The function See more • "Convex function (of a real variable)", Encyclopedia of Mathematics, EMS Press, 2001 [1994] • "Convex function (of a complex variable)", Encyclopedia of Mathematics, EMS Press, 2001 [1994] See more Many properties of convex functions have the same simple formulation for functions of many variables as for functions of one variable. See below … See more The concept of strong convexity extends and parametrizes the notion of strict convexity. A strongly convex function is also strictly convex, … See more • Concave function • Convex analysis • Convex conjugate • Convex curve See more alimenta marechal