微商 可以证明,若函数=∫(x)在z点可导,则一定 在该点可微,反之亦然开且A(2)=(2),即Analytic Functions Elementary Functions Differentiability Analyticity ‡û Œ±y²§e¼êw = f(z)3z:Œ§K½ 3T:Œ‡ §‡ƒ½, ¶¿…A(z) = f 0 (z)§= dw = f 0 (z) dz ½ dw dz = f 0 (z) ÏdꏡŠ‡û C. S. Wu 1ù )Û¼ê