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= LAMBDA2XY(LAMBDA) is the xy-chromaticity coordinate (1x2) for
illumination at the specific wavelength LAMBDA [metres]. If LAMBDA is a vector (Nx1), then P (Nx2) is a vector whose elements are the luminosity at the corresponding elements of LAMBDA.
xy = lambda2xy(lambda, E) is the rg-chromaticity coordinate (1x2) for an illumination spectrum E (Nx1) defined at corresponding wavelengths lambda (Nx1).
© 1990-2012 Peter Corke.