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Concave function - Wikipedia
Convex and Concave Curves | Revision | MME - MME Revise
Concave Upward and Downward - Math is Fun
Difference between Convex and Concave Curves
Concave vs Convex - Science Notes and Projects
Concavity - Math.net
Why does "convex function" mean "concave *up*"?
Introduction to Concave and Convex Functions - YouTube
Concave Definition (Illustrated Mathematics Dictionary) - Math is …
Concave in Geometry | Definition, Shapes & Functions