???·?·??è??x??????i???o???????????????????????°?±??±i?é??
???????????????°??
?????????????????????????é??x????????????????????§?¤??x???±???????·?????
????°????±?????·????????
??????????1666?ê4??±??????????????¨???????????????x????????????·??o???????????????
???????????????±????????1671?ê-1672?ê??????????·???????±??????ê???¨??????????
???????o??????????????????????·???????
????????f??(x0)f??(x0)????????x0x0?????f(x0+?¤x)?6?1f(x0)??f??(x0)?¤xf(x0+?¤x)?6?1f(x0)??f??(x0)?¤x????
???????????¤x=x?6?1x0?¤x=x?6?1x0??????????f(x)=f(x0)+f??(x0)(x?6?1x0)+o(x?6?1x0)f(x)=f(x0)+f??(x0)(x?6?1x0)+o(x?6?1x0)????
?????????????f(x)??f(x0)+f??(x0)(x?6?1x0)f(x)??f(x0)+f??(x0)(x?6?1x0).......??
????????·??????????·???????????·???????¨?????????o??±???
??????????x???x???
?????i????????????±i?é????????????????????
?????°????????????????????????·????????????????±