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Lorentzian function

Lorentzian function

"Lorentzian function" is a function given by (1/π){b / [(x - a)2 + b2]}, where a and b are constants. It is used for pre-processing of the background in a spectrum and for fitting of the spectral intensity. The real spectral shapes are better approximated by the Lorentzian function than the Gaussian function.

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