It is a particular type (called type 1) of Steiner surface, that is, a 3-dimensional linear projection of the Veronese surface.

Perspective projection is a linear projection where three dimensional objects are projected on a "picture plane".

Manifold alignment can be used to find linear (feature-level) projections, or nonlinear (instance-level) embeddings.

The current birth rate is not a linear projection in any direction.

As such, postmodernism is a linear projection, a natural conclusion to modernity; and by privileging secularism it has become an arch ideology.

The so-called "3-D movie craze" in the years 1952 through 1955 was almost entirely offered in theaters using linear polarizing projection and glasses.

"Didn't you think I wouldn't experiment a bit on my own after we discussed techniques for linear astral projection?"

But they are still conventional, just linear projections of earlier work.

I am fine, thanks...and no interest in linear projections of "over there the grass is greener"!

Such linear projections characterize most of what is said or written about the future.