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...rt description|Triangle defined from the midpoints of the sides of another triangle}} ...The endpoints of the red triangle coincide with the midpoints of the black triangle.]] ...

...description|Triangle found by projecting a point onto the sides of another triangle}} [[File:Pedal Triangle.svg|right|thumb| ...

{{About|degeneracy in mathematics|the degeneracy of a graph|Degeneracy (graph theory)|other uses|Degeneracy (disambiguation)}} ...ccess-date=2019-11-29}}</ref> "'''degeneracy'''" is the condition of being a degenerate case.<ref>{{Cite web|url=https://www.merriam-webster.com/diction ...

...geometry is regarded as the study of [[isometry group]]s, then a centre is a fixed point of all the isometries that move the object onto itself. ...is the point equidistant from the points on the surface, and the centre of a line segment is the [[midpoint]] of the two ends. ...

...</math> in a plane as shown in the figure, the point <math>P</math> ''is'' a convex combination of the three points, while <math>Q</math> is ''not''. {{ ...Convex combination of two points <math> v_1,v_2 \in \mathbb{R}^2</math> in a two dimensional vector space <math>\mathbb{R}^2</math> as animation in [[G ...

{{Short description|Automorphism group of a metric space or pseudo-Euclidean space}} In [[mathematics]], the '''isometry group''' of a [[metric space]] is the [[Set (mathematics)|set]] of all [[bijective]] [[is ...

...c space]]s. Metric trees exploit properties of metric spaces such as the [[triangle inequality]] to make accesses to the data more efficient. Examples include <!-- should have a list and summary of metric trees, with links to the main articles. --> ...

{{Short description|Distance between two statistical objects}} ...the distance can be between an individual sample point and a population or a wider sample of points. ...

...ication packages – Part 3: Spatial |publisher=[[International Organization for Standardization|ISO]] |url=https://www.iso.org/standard/60343.html |access- ==Geometric objects== ...

{{Short description|Value in color space that defines the color 'white' for capture and reproduction}} ...unacceptable results when attempting to [[color correction|color-correct]] a photograph taken with incandescent lighting. ...

...g each object to a non-negative integer, such that there are finitely many objects of each size.<ref>{{citation | title = A generic approach for the unranking of labeled combinatorial classes ...

...]]s. More precisely, in a [[Category (mathematics)|category]] '''E''' with a [[terminal object]] 1, an NNO ''N'' is given by: # a [[global element]] ''z'' : 1 → ''N'', and ...

...igne, and Gabber on [[perverse sheaf|perverse sheaves]].<ref>Beĭlinson, A. A.; Bernstein, J.; Deligne, P. ''Faisceaux pervers.'' Analysis and topology o ...<math>[1]</math>. A '''''t''-structure''' on <math>\mathcal{D}</math> is a pair <math>(\mathcal{D}^{\le 0}, \mathcal{D}^{\ge 0})</math> of full subcat ...

...e (draw, store). Sometimes the [[subroutine]]s that draw the corresponding objects are called "geometric primitives" as well. The most "primitive" primitives ...id geometry]], primitives are simple [[geometry|geometric]] shapes such as a [[Cube (geometry)|cube]], [[cylinder (geometry)|cylinder]], [[sphere]], [[c ...

...xts the operation may also need to be commutative and perhaps also to have a [[right adjoint]] (i.e., making the category [[symmetric monoidal category| Enriched category theory thus encompasses within the same framework a wide variety of structures including ...

...[[Graph (discrete mathematics)|graphs]] defined by [[geometric]] means. In a stricter sense, geometric graph theory studies [[combinatorial]] and geomet ...s in the plane by connecting two points with an edge whenever there exists a circle containing only those two points. ...

...t the same model with back-faces removed. Because the polygons do not form a closed solid, differences can be seen.]] ..., '''back-face culling''' determines whether a [[polygon]] that is part of a solid needs to be drawn.<ref name=Foley>{{cite book ...

...hildren's toy called Shape-O made by [[Tupperware Brands|Tupperware]] used for learning various shapes.]] A '''shape''' is a [[graphics|graphical representation]] of an object's form or its external b ...

...sharp illusory contour, occluding three black circles and a black-outlined triangle.]] ...ic American'' paper marked the resurgence of interest in illusory contours for vision scientists. ...

...ient Greek]] [[polymath]] [[Archimedes]]. ''The Method'' takes the form of a letter from Archimedes to [[Eratosthenes]],{{r|archimedes}} the chief libra ...rtheless, the mechanical method was what he used to discover the relations for which he later gave rigorous proofs. ...