 x Collinearity Encyclopedia
A set of points is collinear (often misspelled as, but should not be confused with, co-linear or colinear) if they lie on a single line
Line (geometry)
The notion of line or straight line was introduced by the ancient mathematicians to represent straight objects with negligible width and depth. Lines are an idealization of such objects...

. Related concepts include:

In mathematics:
• Line (geometry)
Line (geometry)
The notion of line or straight line was introduced by the ancient mathematicians to represent straight objects with negligible width and depth. Lines are an idealization of such objects...

, a primitive (undefined) object type in most geometries. Encompasses the idea of a straight line in Euclidean geometry
• Multicollinearity
Multicollinearity
Multicollinearity is a statistical phenomenon in which two or more predictor variables in a multiple regression model are highly correlated. In this situation the coefficient estimates may change erratically in response to small changes in the model or the data...

, a statistical phenomenon in which two or more predictor variables in a multiple regression model are highly correlated
• Colinear map
Colinear map
In coalgebra theory, the notion of colinear map is dual to the notion for linear map of vector space, or more generally, for morphism between R-module. Specifically, let R be a ring, M,N,C be R-modules, and...

(or co-linear map), the dual notion of a linear map in comodule theory
• Concurrent lines
Concurrent lines
In geometry, two or more lines are said to be concurrent if they intersect at a single point.In a triangle, four basic types of sets of concurrent lines are altitudes, angle bisectors, medians, and perpendicular bisectors:...

in geometry, the dual notion of collinear points

In engineering:
• Collinear antenna array
Collinear antenna array
In telecommunications, a collinear antenna array is an array of dipole antennas mounted in such a manner that the corresponding elements of each antenna are parallel and collinear, that is they are located along a common line or axis....

• Collinearity equation
Collinearity equation
The collinearity equation is used in photogrammetry and remote sensing to relate coordinates in a sensor plane to object coordinates .... 