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For further details see the Order Form or go back to our Home Page Overview DataFit is an advanced function fitting and data modelling program which was developed to be both powerful and exceptionally easy to use. You can fit virtually any function through your data points quickly and easily, and get comprehensive statistical and graphical analyses of the fit. Fit any math function through your data points quickly and easily. Fit up to 20 variable parameters to functions of up to 6 independent variables. Include exp, ln, trig and hyperbolic trig functions, Boolean operators, piecewise-continuous functions, parametric equations, families of functions.