第1个回答 2014-05-14
我们已经看到如何约略oxima teafunct ionusingitstangentli val ueatsomepoint(sayf(a))andthevalueofthederivativeatthesame
效果好(英国《金融时报》(a))wecanusetheseto findthetangentline,andthenusethetangentlinetoapproximatef(x)
forotherpoints x.Ofcourse thisapproximationwillonlybegoodwhenxisrelativelyneara.Thetangentlineapproximationoff(x)forxnearaiscalledthefirstdegreeTaylorPolynomialoff(x)并:本回答被提问者采纳