汉语汉字,拼音:āo(wā在字典中清除)
But the requirement of this method is very strong: the function must be convex or concave.
而Jensen不等式要求的条件很苛刻:必须是凸(凹)函数。
参考来源 - 控制不等式在初等数学中的应用·2,447,543篇论文数据,部分数据来源于NoteExpress
由于这是一个凹函数,它不仅仅是期望值。
Since this is a concave function, it's not just the expected value.
人的手掌是微凹的。
水从叶子内部的细胞涌向外面的细胞,导致叶子迅速地从凸向凹翻转,就像一片柔软的隐形眼镜。
Water surges from the cells on the inside of the leaf to those on the outside, causing the leaf to rapidly flip in shape from convex to concave, like a soft contact lens.
Since this is a concave function, it's not just the expected value.
由于这是一条凹曲线,它不只是期待值
We all know that in 2006 the car had a lot of scratches and it got bended in one side and pretty sorry looking in terms of the scrapes and the paint job and the rust.
我们都知道,2006年的车有很多刮痕,一边车身还凹了,很旧的样子,到处是刮痕,油漆脱落,生锈。
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