C l = 2 π [ A 0 + A 1 / 2 ] = 2 π [ α − α z l ] {\displaystyle C_{l}=2\pi \left[A_{0}+A_{1}/2\right]=2\pi \left[\alpha -\alpha _{zl}\right]}
A 0 = α − 1 π ∫ 0 π d Z ¯ d x ( θ ) d θ {\displaystyle A_{0}=\alpha -{\frac {1}{\pi }}\int _{0}^{\pi }{\frac {d{\overline {Z}}}{dx}}(\theta )d\theta }
A n = 2 π ∫ 0 π d Z ¯ d x ( θ ) cos ( n θ ) d θ {\displaystyle A_{n}={\frac {2}{\pi }}\int _{0}^{\pi }{\frac {d{\overline {Z}}}{dx}}(\theta )\cos(n\theta )d\theta }