Concave Function

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A Concave Function is a convex function upside down.

See: Convex Function, Convex Set.



References

2015

1999

  • (Wolfram Mathworld , 1999) ⇒ http://mathworld.wolfram.com/ConcaveFunction.html
    • QUOTE: A function [math]\displaystyle{ f(x) }[/math] is said to be concave on an interval [math]\displaystyle{ [a,b] }[/math] if, for any points [math]\displaystyle{ x_1 }[/math] and [math]\displaystyle{ x_2 }[/math]in </math>[a,b]</math> the function [math]\displaystyle{ -f(x) }[/math] is convex on that interval.