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The word copula derives from the Latin noun for a "link" or "tie" that connects two different things. [1] [2] A copula is often a verb or a verb-like word, though this is not universally the case. [3] A verb that is a copula is sometimes called a copulative or copular verb. In English primary education grammar courses, a copula is often called ...
This is a non-exhaustive list of copulae in the English language, i.e. words used to link the subject of a sentence with a predicate (a subject complement).. Because many of these copulative verbs may be used non-copulatively, examples are provided.
Tangential – intersecting a curve at a point and parallel to the curve at that point. Collinear – in the same line; Parallel – in the same direction. Transverse – intersecting at any angle, i.e. not parallel. Orthogonal (or perpendicular) – at a right angle (at the point of intersection).
Two intersecting lines. In Euclidean geometry, the intersection of a line and a line can be the empty set, a point, or another line.Distinguishing these cases and finding the intersection have uses, for example, in computer graphics, motion planning, and collision detection.
However these two sets have an intersection that forms a non-contractible equatorial band. To form a good cover for this surface, one needs at least four open sets. A good cover can be formed by projecting the faces of a tetrahedron onto a sphere in which it is inscribed, and taking an open neighborhood of each face.
The double "is", also known as the double copula, reduplicative copula, or Is-is, [1] [2] is the usage of the word "is" twice in a row (repeated copulae) when only one is necessary. Double is appears largely in spoken English , as in this example:
Inverse copular constructions involve nouns and noun phrases, but they do not allow the post-copula nominal to be a personal pronoun: a. The cause of the riot is a picture on the wall. b. A picture on the wall is the cause of the riot. - Inverse copular construction c. *A picture on the wall is it. - Post-verb subject cannot be a personal ...
An example of coplanar points. Two lines in three-dimensional space are coplanar if there is a plane that includes them both. This occurs if the lines are parallel, or if they intersect each other. Two lines that are not coplanar are called skew lines.