CR még mindig...

gistfile1.tex

\left( 2\frac{(p_i-p_{i+1})}{(t_{i+1}-t_i)^3}+\frac{\frac{\frac{p_{i+2}-p_{i+1}}{t_{i+2}-t_{i+1}}+\frac{p_{i+1}-p_i}{t_{i+1}-t_i}}{2}(1-\tau)+\frac{\frac{p_{i+1}-p_i}{t_{i+1}-t_i}+\frac{p_i-p_{i-1}}{t_i-t_{i-1}}}{2}(1-\tau)}{(t_{i+1}-t_i)^2} \right )(t-t_i)^3+\left(\frac{3(p_{i+1}-p_i)}{(t_{i+1}-t_i)^2}-\frac{\frac{\frac{p_{i+2}-p_{i+1}}{t_{i+2}-t_{i+1}}+\frac{p_{i+1}-p_i}{t_{i+1}-t_i}}{2}(1-\tau)+(1-\tau)2\frac{\frac{p_{i+1}-p_i}{t_{i+1}-t_i}+\frac{p_i-p_{i-1}}{t_i-t_{i-1}}}{2}}{t_{i+1}-t_i} \right )(t-t_i)^2+\frac{\frac{p_{i+1}-p_i}{t_{i+1}-t_{i}}+\frac{p_i-p_{i-1}}{t_i-t_{i-1}}}{2}(t-t_i)(1-\tau)+p_i