Shape

The shape (Old English: gesceap, created thing) of an object located in some space is a geometrical description of the part of that space occupied by the object, as determined by its external boundary – abstracting from location and orientation in space, size, and other properties such as colour, content, and material composition.

Mathematician and statistician David George Kendall writes:

In this paper ‘shape’ is used in the vulgar sense, and means what one would normally expect it to mean. We here define ‘shape’ informally as ‘all the geometrical information that remains when location, scale and rotational effects are filtered out from an object.’

Simple shapes can be described by basic geometry objects such as a set of two or more points, a line, a curve, a plane, a plane figure (e.g. square or circle), or a solid figure (e.g. cube or sphere). Most shapes occurring in the physical world are complex. Some, such as plant structures and coastlines, may be so arbitrary as to defy traditional mathematical description – in which case they may be analyzed by differential geometry, or as fractals.

Read more about Shape:  Rigid Shape Definition, Non-rigid Shape Definition, Colloquial Shape Definition, Philosophical Skepticism of Definitions, Shape Analysis, Similarity Classes

Other articles related to "shape, shapes":

Shape - Similarity Classes
... All similar triangles have the same shape ... These shapes can be classified using complex numbers in a method advanced by J.A ... and Artzy call the ratio S(u,v,w) = (u −w)/(u − v) the shape of triangle (u, v, w) ...
Carton - Shape
... Tetrahedrons and other shapes are available ... Cartons with a hexagonal or octagonal cross sections are sometimes used for specialty items ...
Water Retention Curve - Shape Parameters
... The shape of water retention curves can be characterized by several models, one of them known as the van Genuchten model where is the water retention curve ... Based on this parametrization a prediction model for the shape of the unsaturated hydraulic conductivity - saturation - pressure relationship was developed ...
Northern Muriqui - Identification
... features, such as fur color and patterning, ear shape, and face shape and pigmentation ... can usually be determined within a week or so of birth, based on the shape and positioning of their genitalia ...
Aerobie - History
... He tried streamlining the shape to reduce drag, but this resulted in a disc that was more unstable in flight ... Eventually, he turned his attention to the ring shape ... After testing several models, the ideal shape was found, and the Aerobie was produced ...

Famous quotes containing the word shape:

    We cannot shape our children according to our ideas,
    We must keep and love them as God gave them to us.
    Johann Wolfgang Von Goethe (1749–1832)

    his fear of the word “veil”;
    and in the shape of a ship,
    still another who slept.
    —Joáo Cabral De Melo Neto (b. 1920)

    But a camel’s all lumpy
    And bumpy and humpy—
    Any shape does for me.
    Charles Edward Carryl (1841–1920)