plane at infinity中文什么意思
- plane: n. 平刨；镘。 a jack pl ...
- infinity: n. 1.＝infinitude. ...
- at infinity: 无尽的; 在无穷远处
In projective geometry, the plane at infinity is a projective plane which is added to the affine 3-space in order to give it closure of incidence properties. The result of the addition is the projective 3-space, P^3.