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The two colors may also be combined in more complex ways, e.g. by computing their bitwise exclusive or. This technique is known as inverting color or color inversion , and is often used in graphical user interfaces for highlighting, rubber-band drawing, and other volatile painting—since re-painting the same shapes with the same color will ...
In logic, a set of symbols is commonly used to express logical representation. The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics.
For example, the 180° rotational ambigram "yeah" contains only two pairs of letters: y/h and e/a, whereas the heterogram "yeah / good" contains four : y/d, e/o, a/o, and h/g. There is no limitation to the number of words that can potentially be paired up as hetero-ambigrams, and full ambigram sentences have even been published.
A two-dimensional complex space – such as the two-dimensional complex coordinate space, the complex projective plane, or a complex surface – has two complex dimensions, which can alternately be represented using four real dimensions. A two-dimensional lattice is an infinite grid of points which can be represented using integer coordinates.
The sum of degrees of all six vertices is 2 + 3 + 2 + 3 + 3 + 1 = 14, twice the number of edges. In graph theory , the handshaking lemma is the statement that, in every finite undirected graph , the number of vertices that touch an odd number of edges is even.
The character has two strokes, the first shown here in dark, and the second in red. The black area represents the starting position of the writing instrument. This rule also applies to the order of components. For example, 校 can be divided into two. The entire left side (木) is written before the right side (交). There are some exceptions ...
Meet the Press was the first regular series on a major television network to produce a high-definition broadcast on February 2, 1997, which aired in the format over WHD-TV in Washington, D.C., an experimental television station owned by a consortium of industry groups and stations which launched to allow testing of HD broadcasts and operated ...
Napier proposed two primary prehensile grips: the precision grip and the power grip. [34] The precision and power grip are defined by the position of the thumb and fingers where: The power grip is when the fingers (and sometimes palm) clamp down on an object with the thumb making counter pressure.