four-color problem

problema de los cuatro colores

English-Spanish mathematics dictionary. . 1964.

Mira otros diccionarios:

  • four-color problem — /fawr kul euhr, fohr /, Math. the problem, solved in 1976, of proving the theorem that any geographic map can be colored using only four colors so that no connected countries with a common boundary are colored the same color. Also called four… …   Universalium

  • four-color problem — /fawr kul euhr, fohr /, Math. the problem, solved in 1976, of proving the theorem that any geographic map can be colored using only four colors so that no connected countries with a common boundary are colored the same color. Also called four… …   Useful english dictionary

  • Four color theorem — Example of a four colored map A four colori …   Wikipedia

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  • Color blindness — Colorblind and Colourblind redirect here. For other uses, see Colorblind (disambiguation). Color blindness or color deficiency Classification and external resources An 1895 illustration of normal vision and various kinds of color blindness …   Wikipedia

  • Color-line — The phrase color line was originally used as a reference to the racial segregation that existed in the United States after the abolishment of slavery. The phrase gained fame after W.E.B. Du Bois’ repeated use of it in his book The Souls of Black… …   Wikipedia

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  • Color histogram — Not to be confused with Image histogram. In image processing and photography, a color histogram is a representation of the distribution of colors in an image. For digital images, a color histogram represents the number of pixels that have colors… …   Wikipedia

  • Color — This article is about the perceptual property. For other uses, see Color (disambiguation). For usage of color on Wikipedia, see Wikipedia:Colors. Colored pencils Color or colour (see spelling differences) is the visual perceptual property… …   Wikipedia

  • Color television — Title card for NBC, promoting their broadcast in RCA color . Color television is part of the history of television, the technology of television and practices associated with television s transmission of moving images in color video. In its most… …   Wikipedia

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