z=x+iy is a complex number.
If i have f(z)=u(x,y)+iv(x,y), which is the derivation rule to get
$\displaystyle \frac{df(z)}{dz}$ ?
Thanks.
See...
http://www.mathhelpforum.com/math-he...on-157559.html
Kind regards
$\displaystyle \chi$ $\displaystyle \sigma$