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.
Other articles related to "shape, shapes":
... facial features, such as fur color and patterning, ear shape, and face shape and pigmentation ... Their sex can usually be determined within a week or so of birth, based on the shape and positioning of their genitalia ...
... All similar triangles have the same shape ... These shapes can be classified using complex numbers in a method advanced by J.A ... call the ratio S(u,v,w) = (u −w)/(u − v) the shape of triangle (u, v, w) ...
... 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 is ... Based on this parametrization a prediction model for the shape of the unsaturated hydraulic conductivity - saturation - pressure relationship was developed ...
... Tetrahedrons and other shapes are available ... Cartons with a hexagonal or octagonal cross sections are sometimes used for specialty items ...
... 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:
“But virtue, as it never will be moved,
Though lewdness court it in a shape of heaven,
So lust, though to a radiant angel linked,
Will sate itself in a celestial bed
And prey on garbage.”
—William Shakespeare (15641616)
“I used to say: there is a God-shaped hole in me. For a long time I stressed the absence, the hole. Now I find it is the shape which has become more important.”
—Salman Rushdie (b. 1948)
“Man is not merely the sum of his masks. Behind the shifting face of personality is a hard nugget of self, a genetic gift.... The self is malleable but elastic, snapping back to its original shape like a rubber band. Mental illness is no myth, as some have claimed. It is a disturbance in our sense of possession of a stable inner self that survives its personae.”
—Camille Paglia (b. 1947)