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In the Euclidean plane with points a, b, c referred to an origin, the ternary operation [,,] = + has been used to define free vectors. [2] Since ( abc ) = d implies b – a = c – d , the directed line segments b – a and c – d are equipollent and are associated with the same free vector.
A planar ternary ring (PTR) or ternary field is special type of ternary system used by Marshall Hall [1] to construct projective planes by means of coordinates. A planar ternary ring is not a ring in the traditional sense, but any field gives a planar ternary ring where the operation T {\displaystyle T} is defined by T ( a , b , c ) = a b + c ...
The archetypical example is the real projective plane, also known as the extended Euclidean plane. [1] This example, in slightly different guises, is important in algebraic geometry , topology and projective geometry where it may be denoted variously by PG(2, R ) , RP 2 , or P 2 ( R ), among other notations.
The eight (±,±,±) coordinates of the cube vertices are used to denote them. The horizontal plane shows the four quadrants between x- and y-axis. (Vertex numbers are little-endian balanced ternary.) An octant in solid geometry is one of the eight divisions of a Euclidean three-dimensional coordinate system defined
The affine coordinates in a Desarguesian plane for the points designated to be the points at infinity (in this example: C, E and G) can be defined in several other ways. In standard notation, a finite projective geometry is written PG(a, b) where: a is the projective (or geometric) dimension, and
The automorphism group of the extended ternary Golay code is 2.M 12, where M 12 is the Mathieu group M 12. The extended ternary Golay code can be constructed as the span of the rows of a Hadamard matrix of order 12 over the field F 3. Consider all codewords of the extended code which have just six nonzero digits.
In the above example, IIf is a ternary function, but not a ternary operator. As a function, the values of all three portions are evaluated before the function call occurs. This imposed limitations, and in Visual Basic .Net 9.0, released with Visual Studio 2008, an actual conditional operator was introduced, using the If keyword instead of IIf ...
The most basic example is the flat Euclidean plane, an idealization of a flat surface in physical space such as a sheet of paper or a chalkboard. On the Euclidean plane, any two points can be joined by a unique straight line along which the distance can be measured.