Homework Statement
Let Δf= d^2f/dx^2+ d^g/dy^2 (laplace equation - Partial Derivatives) Show Δ(f(g(z))= Mod(g'(z))^2 * Δf(w,v) where g(z)=w(x,y)+v(x,y)i
Homework Equations
we propably need to use cauchy riemman equations: dw/dx = dv/dy and dw/dy = - dv/dx
and chain rule
The Attempt...