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In geometry, a vertex (Latin: whirl, whirlpool; plural vertices) is a corner of a polygon (where two sides meet) or of a polyhedron (where three or
more faces and an equal number of edges meet).
In graph theory, a graph describes a set of connections between
objects. Each object is called a node or vertex. The connections themselves are called edges
or arcs.
In 3D computer graphics, a vertex is a point in 3D space
with a particular location, usually given in terms of its x, y, and z coordinates. It is one of the
fundamental structures in polygonal modelling: two vertices, taken together, can be used to define the endpoints of a line; three
vertices can be used to define a planar triangle. Many people confuse vertices with vectors because they can be described with the same properties. They are, however, two completely different
things.
See also
parabola
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