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CIE tristimulus curves/functions

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CIE tristimulus curves/functions (In French fonctions trichromatiques CIE) continuous function (for 2° and 10°) in the virtual CIE colorimetric system CIEXYZ, 1931 referring to the wavelength λ (at 5 nm intervals) calculated as a standardization of the real fundamental stimulus system PDT. The three function terms can be regarded as the CIE tristimulus values X, Y, Z in CIEXYZ.