adj. tangent ; tangential
跑切线的路线。
一个凹函数的图象总在它的切线的下方。
The graph of a concave function is always below its tangent.
我们知道fx和fy是,曲面上两条切线的斜率。
We know that f sub x and f sub y are the slopes of two tangent lines to this plane, two tangent lines to the graph.
The basic idea is, you take a guess and you -- whoops -- and you find the tangent of that guess.
首先取个猜想数,然后,嗯,去取猜想数那儿的切线。
Somebody else might say, well I want to just hold this point, I want to hold the tangency portfolio.
而另外的某些人可能会说,我就想按这个点的比例来持有投资,我想持有切线投资组合。
Show me a place where that's not true where the tangent line will be really bad.
请给我个这个原则不对的例子,也就是说切线没起到相应作用的例子。
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