导,dǎo,从辵(辶,chuò),从首从寸。 导的本字,上面是首表示人;下面是止表示脚;外面是行表示路口。合在一起的意思是,人走到路口时,需要得到引导、引领。 (1) 形声。从寸,道声。“寸”与“手”意思相近。本义:以手牵引,引导。 (2) 同本义 [lead;guide] 导(dǎo)基本字义:1.、指引,带领:领~。引~。向~(引路的人)。倡~。推~。~引。~游。~向。~师。~言。2、传引,传向:传~。~热。~致(引起)。3、启发:开~。教~。因势利~
Now Isaac Newton and/or Joseph Raphson figured out how to do this kind of thing for all differentiable functions.
既然牛顿和拉复生已经,指数了如何解这种可导函数,因此我们就不用太担心了。
But then having found one answer, you can add to it anything that gets killed by the act of taking derivatives.
一旦你算出了一个答案,你就可以往式子里加入任何,在求完导后消失的项
Let's listen to Luciano Pavarotti sing a leading tone, and as by coincidence, it happens to be the one-year anniversary of Pavarotti's death this week.
让我们听一下,卢西亚诺·帕瓦罗蒂演唱的导音,巧合的是,这周恰好是,帕瓦罗蒂逝世一周年
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