\▐eks\ n {often capitalized, often attributive} (before 12c) (1) Symbol for mole fraction, usually subscripted to indicate the component of interest. (2) Symbol for general variable, or independent variable, and the horizontal graphing axis, or abscissa. (3) One of the CIE chromaticity coordinates calculated as the fraction of the sum of the three tristimulus values attributable to the X Value:
(McDonald R (ed) (1997) Colour physics for Industry, 2nd edn. Society of Dyers and Colourists, West Yorkshire, UK). See Chromaticity Coordinates, CIE.
\(\overline {\bf x}\, \) n Special color matching functions of the CIE Standard Observer, used for calculating the X tristimulus value. (McDonald R (ed) (1997) Colour physics for Industry, 2nd edn. Society of Dyers and Colourists, West Yorkshire, UK). See Tristimulus Computation Data and Color Matching Functions.
X (1) One of the three CIE tristimulus values; the red primary. See Tristimul...
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Gooch, J.W. (2011). X. In: Gooch, J.W. (eds) Encyclopedic Dictionary of Polymers. Springer, New York, NY. https://doi.org/10.1007/978-1-4419-6247-8_12913
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