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Wheel graph. In the mathematical discipline of graph theory, a wheel graph is a graph formed by connecting a single universal vertex to all vertices of a cycle. A wheel graph with n vertices can also be defined as the 1- skeleton of an (n – 1)-gonal pyramid. Some authors [1] write Wn to denote a wheel graph with n vertices (n ≥ 4); other ...
Wheel theory. A diagram of a wheel, as the real projective line with a point at nullity (denoted by ⊥). A wheel is a type of algebra (in the sense of universal algebra) where division is always defined. In particular, division by zero is meaningful. The real numbers can be extended to a wheel, as can any commutative ring.
A map of the 24 permutations and the 23 swaps used in Heap's algorithm permuting the four letters A (amber), B (blue), C (cyan) and D (dark red) Wheel diagram of all permutations of length = generated by Heap's algorithm, where each permutation is color-coded (1=blue, 2=green, 3=yellow, 4=red).
The Ackermann steering geometry is a geometric arrangement of linkages in the steering of a car or other vehicle designed to solve the problem of wheels on the inside and outside of a turn needing to trace out circles of different radii. It was invented by the German carriage builder Georg Lankensperger in Munich in 1816, then patented by his ...
v. t. e. The futures wheel is a method for graphical visualisation of direct and indirect future consequences of a particular change or development. It was invented by Jerome C. Glenn in 1971, when he was a student at the Antioch Graduate School of Education (now Antioch University New England). The Futures Wheel is a way of organizing thinking ...
Creates diagrams using simple text language. Sequence, use case, class, activity, component, state, object, and UI mock diagrams are supported. Outputs images in PNG or SVG format. PowerDesigner: Yes Yes Yes Yes Java, C#, VB .NET Unknown Eclipse Data-modeling, business-process modeling - round trip engineering Prosa UML Modeller: Yes Yes Open ...
A graph or chart or diagram is a diagrammatical illustration of a set of data. If the graph is uploaded as an image file, it can be placed within articles just like any other image. Graphs must be accurate and convey information efficiently. They should be viewable at different computer screen resolutions.
Diagram illustrating the principles used by William Wallace's eidograph. The ancient Greek engineer Hero of Alexandria described pantographs in his work Mechanics. [1]In 1603, [2] Christoph Scheiner used a pantograph to copy and scale diagrams, and wrote about the invention over 27 years later, in "Pantographice seu Ars delineandi res quaslibet per parallelogrammum lineare seu cavum" (Rome 1631).