Abstract
Fitter is a C++ program aimed to fit a chosen theoretical multi-parameter function through a set of data points. The method of fitting is chi-square minimization. Moreover, the robust fitting method can be applied in Fitter. Fitter was disigned to be used for a small-angle neutron scattering data analisis. Respective theoretical models are implemented in it. Some common used models (Gaussian and polynomials) are also implemented for wider aplicability. The programm include the option the resolution of spectrometer. The investigation has been performed at the Laboratory of Information Technologies and at the Frank Laboratory of Neutron Physics, JINR. Fitter can be downloaded from [1].
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