Chapter 0 Preface Example:y lim f(x+△x)-f(x) △x->0 △x =bn(x+D2_12 2x△x+△ 2x 0 △ △x->0 Some basic formulae (c')=0 (cos x)'=-sin x C (ais areal number) (sin x)=cos xChapter 1Chapter 1 Measurment Chapter 0 Preface Example: 2 y = x x x x x x x x x x x f x x f x y x x x 2 2 lim ( ) lim ( ) ( ) ' lim 2 0 2 2 0 0 =   +  =  +  − =  +  − =  →  →  → Some basic formulae: (c') = 0 x x (e )'= e 1 ( )' − =   x x ( is a real number) (sin x)'= cos x (cos x)'= −sin x x x 1 (ln )'=