unoriented

Equivalently this is the space of all (unoriented) lines through the origin.

Algebra Pratt, Vaughan 2007

I recall just enough group theory from university that I sometimes think of PCs as being like a coset of 2 elements – the +1 version and the -1 version, which thus are an unoriented element.

The Euro Team and the SWM Network « Climate Audit 2006

Here am I marching up and down this terrace alone, unoriented.

The Waves 2003

Conversely, some social situations, such as those occurring during a ceremonial investiture, are scenes in which few, if any, of these situationally unoriented activities are allowed.

Behavior in Public Places ERVING GOFFMAN 1963

All the leaders, all the officers, are confused and unoriented.

Battle Studies Charles Jean Jacques Joseph Ardant du Picq 1845

Open/unoriented amplitudes of this kind go back to Ooguri-Vafa 2000 (and Walcher 2007).

The Reference Frame 2010

"But we found that current does not flow nearly as easily perpendicular to the planes, or in unoriented material," Katz said.

Nano Tech Wire 2009

"But we found that current does not flow nearly as easily perpendicular to the planes, or in unoriented material," Katz said.

PhysOrg.com - latest science and technology news stories 2009

The problem with PCs is not that they are signed, but that you don’t know the direction of the sign – it’s that they are essentially unoriented.

Perverse PCs « Climate Audit 2005

Steve’s comment: PCs are unoriented and I believe, in group-theoretic terms, would be a coset of the two oppositely-oriented forms in a quotient group.

A Red Noise Spaghetti Diagram « Climate Audit 2005