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  2. Shape - Wikipedia

    en.wikipedia.org/wiki/Shape

    If an object falls into one of these categories exactly or even approximately, we can use it to describe the shape of the object. Thus, we say that the shape of a manhole cover is a disk , because it is approximately the same geometric object as an actual geometric disk.

  3. Orientation (geometry) - Wikipedia

    en.wikipedia.org/wiki/Orientation_(geometry)

    Therefore, as before, the orientation can be given as the rotation from the initial frame to achieve the frame that we want to describe. The configuration space of a non-symmetrical object in n-dimensional space is SO × R n. Orientation may be visualized by attaching a basis of tangent vectors to an object. The direction in which each vector ...

  4. Representation (arts) - Wikipedia

    en.wikipedia.org/wiki/Representation_(arts)

    An object either (1) is immediate to a sign, and that is the object as represented in the sign, or (2) is a dynamic object, which is the object as it really is, on which the immediate object is founded. Usually, an object in question, such as Hamlet or the planet Neptune, is a special or partial object.

  5. Set (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Set_(mathematics)

    A set of polygons in an Euler diagram This set equals the one depicted above since both have the very same elements.. In mathematics, a set is a collection of different [1] things; [2] [3] [4] these things are called elements or members of the set and are typically mathematical objects of any kind: numbers, symbols, points in space, lines, other geometrical shapes, variables, or even other ...

  6. Geometry - Wikipedia

    en.wikipedia.org/wiki/Geometry

    In Euclidean geometry, similarity is used to describe objects that have the same shape, while congruence is used to describe objects that are the same in both size and shape. [69] Hilbert , in his work on creating a more rigorous foundation for geometry, treated congruence as an undefined term whose properties are defined by axioms .

  7. Physical property - Wikipedia

    en.wikipedia.org/wiki/Physical_property

    An intensive property does not depend on the size or extent of the system, nor on the amount of matter in the object, while an extensive property shows an additive relationship. These classifications are in general only valid in cases when smaller subdivisions of the sample do not interact in some physical or chemical process when combined.

  8. Physical object - Wikipedia

    en.wikipedia.org/wiki/Physical_object

    The properties of an object are inferred by learning and reasoning based on the information perceived. Abstractly, an object is a construction of our mind consistent with the information provided by our senses, using Occam's razor. In common usage an object is the material inside the boundary of an object, in three-dimensional space.

  9. Mathematical object - Wikipedia

    en.wikipedia.org/wiki/Mathematical_object

    A mathematical object is an abstract concept arising in mathematics. [1] Typically, a mathematical object can be a value that can be assigned to a symbol, and therefore can be involved in formulas. Commonly encountered mathematical objects include numbers, expressions, shapes, functions, and sets.