cib nac mei lujvo

x₁ is a 3-dimensional vector with coordinates x₂, x₃ and x₄.

Cf. nacmei, relnacmei.

jbovlaste

In notes:

nacmei: x₁ is a vector of dimension x₂ with coordinates x₃, x₄, x₅, ...
relnacmei: x₁ is a 2-dimensional vector with coordinates x₂ and x₃.