Fuente TeX:

w_2 = (0,1,1) - \frac{\langle (0,1,1),(1,1,1)\rangle}{\langle (1,1,1),(1,1,1)}(1,1,1) = (0,1,1)- \frac{2}{3}(1,1,1)=\left(-\frac{2}{3},\frac{1}{3},\frac{1}{3}\right).