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- Interpret geometrically the equation 2 answers
We are told that a function is convex only if the following inequality holds:
f(tx + (1 - t) x' , ty + (1 - t) y') ≤ tf(x, y) + (1-t) f(x', y')
for 0 ≤ t ≤ 1 and all pairs of points (x, y) and (x', y').
What does this mean geometrically?