projective frame造句

Projective frames are related by the projective linear group.
A projective frame is sometimes called a "'simplex "', although a simplex in a space of dimension " n " has at most vertices.
Analytically, we choose, in a way otherwise arbitrary, a frame defining a projective frame of reference in the projective space attached to each point of the variety . ..
A "'projective frame "'or "'projective basis "'of a projective space of dimension " n " is an ordered set of points such no hyperplane contains of them.
It's difficult to find projective frame in a sentence. 用projective frame造句挺难的