Question Number 127732 by aseer imad last updated on 01/Jan/21
$${z}={x}+{iy} \\ $$$${why}\:\frac{{f}\left({z}\right)}{{z}−{a}}\:{not}\:{analytical}?\:/\:{not}\:{analytical}\:{at}\:{z}={a}? \\ $$$$ \\ $$
z-x-iy-why-f-z-z-a-not-analytical-not-analytical-at-z-a-