## 2. Rayleigh-Ritz procedure (cont'd)

We end up with a set of $$n$$ algebraic equations in $$c_i$$:
 $\frac{\partial }{\partial {c}_{i}}F\left(\sum _{j=1}^{n}{c}_{j}{w}_{j}\right)=0,\phantom{\rule[-0.5ex]{3ex}{0.5ex}}i=1,2,...n\text{.}$ (Eqn. 2)

R. Funnell