Horizontal lines run left to right, parallel to the horizon, with slope 0 and equation y = k. Vertical lines run top to bottom, perpendicular to the horizon, with undefined slope and equation x = k.

In flat space, two parallel lines never meet, however, they appear to meet at very distances for the same reason due to which objects appear smaller when they are at a distance than when they are ...

In this case the 2D Radon transform is sampled for , , and , . Here is the radius of the reconstruction region, i.e. we assume f(x) = 0 for , . This means that the measured rays come in p parallel ...

Geometry in Construction, a new course for students in the Iowa City Community School District, will approach a hands-on, trade-based model that offers students a combined curriculum of math and ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. EVANSTON, Ill. — Evanston Township High ...

It is well known (see e.g. Kruse (1989)) that the data in the standard parallel geometry is redundant: If p is even, then one can omit each with odd without impairing the resolution. Deriving ...