18/01/23 23:19:21.79 mULB7oqE.net
>>82 補足
(追加引用)
The geometric interpretation of the Straddle Lemma is clear.
If the points u and v "straddle" z, then the slope of the chord between the points (u, f(u)) and (v, f(v)) is close to the slope of the tangent line at (z, f(z)).
(引用終り)
これ、LEMMA 3 (STRADDLE LEMMA)の証明の後に書いてあるんだ
この幾何学的説明だと、平均値の定理の類似というか、変形版のイメージだな