Definition:Concave Real Function/Geometric Interpretation

Geometric Interpretation of Concave Real Function

Let $f$ be a concave real function.

Then:

for every pair of points $A$ and $B$ on the graph of $f$, the line segment $AB$ lies entirely below the graph.

Sources

• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): convex function