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  2. Top tree - Wikipedia

    en.wikipedia.org/wiki/Top_Tree

    A top tree is a data structure based on a binary tree for unrooted dynamic trees that is used mainly for various path-related operations. It allows simple divide-and-conquer algorithms . It has since been augmented to maintain dynamically various properties of a tree such as diameter, center and median.

  3. Natural Color System - Wikipedia

    en.wikipedia.org/wiki/Natural_Color_System

    For the example color of S 2030-Y90R, the saturation is calculated as = / = / = / = NCS lightness (v) is a color's perceptual characteristic to contain more of the achromatic elementary colors black or white than another color. NCS lightness values varies from 0 for the elementary color black (S) to 1 for the elementary color white (W).

  4. Payena gigas - Wikipedia

    en.wikipedia.org/wiki/Payena_gigas

    Payena gigas is a tree in the family Sapotaceae. It grows up to 40 metres (130 ft) tall with a trunk diameter of up to 105 centimetres (40 in). The bark is greyish to brown. Inflorescences bear up to eight flowers. The fruits are ovoid, up to 4.5 cm (2 in) long.

  5. Color wheel - Wikipedia

    en.wikipedia.org/wiki/Color_wheel

    For example, the use of a white background with black text is an example of a common default color scheme in web design. Color schemes are logical combinations of colors on the color wheel. Color schemes are used to create style and appeal. Colors that create an aesthetic feeling together commonly appear together in color schemes. A basic color ...

  6. Entada gigas - Wikipedia

    en.wikipedia.org/wiki/Entada_gigas

    Entada gigas fruit. The fruit measures 12 cm (4.7 in) across and can reach 2 m (6.6 ft) in length. There have been reports of pods up to eight feet (2.5 meters) in length. [4] [5] This pod, like all legumes, is a single carpel, the largest carpel of any known plant.

  7. List of software palettes - Wikipedia

    en.wikipedia.org/wiki/List_of_software_palettes

    This is a list of software palettes used by computers. Systems that use a 4-bit or 8-bit pixel depth can display up to 16 or 256 colors simultaneously. Many personal computers in the early 1990s displayed at most 256 different colors, freely selected by software (either by the user or by a program) from their wider hardware's RGB color palette.

  8. Autumn leaf color - Wikipedia

    en.wikipedia.org/wiki/Autumn_leaf_color

    Japanese maple autumn leaves. Autumn leaf color is a phenomenon that affects the normally green leaves of many deciduous trees and shrubs by which they take on, during a few weeks in the autumn season, various shades of yellow, orange, red, purple, and brown. [1]

  9. Munsell color system - Wikipedia

    en.wikipedia.org/wiki/Munsell_color_system

    The Munsell color system, showing: a circle of hues at value 5 chroma 6; the neutral values from 0 to 10; and the chromas of purple-blue (5PB) at value 5. In colorimetry, the Munsell color system is a color space that specifies colors based on three properties of color: hue (basic color), value , and chroma (color intensity