2x'^2 - 3y'^2 + z'^2 = 1
[2 0 0] [x'] [-1] [0 -3 0] [y'] + [0] = 0 [0 0 1] [z'] [0] superficies cuadraticas ejercicios resueltos hot
x'^2 + 3y'^2 + 6z'^2 = 1