CurvFit is Shareware program for Windows developed by ECB Enterprise
CurvFit (tm) is a curve fitting program after Windows 95 / 98. Lorentzian, Sine, Exponential and Power series are accessible models to equivalent your figures. A Lorentzian series is well recommended after real figures especially after multiple peaked and / or valleys figures. CurvFit is an case of Calculus level programming... ie. minutes to untangle, days or years to perceive solution and what it implies (e.g. unfair model, sampling rate fault, etc.). Helps learn 1) whether math model is acceptable after delineated figures; 2) convergence implies a reasonable solution; 3) how to pick new starting primary parameter values. See comments in EX-*.? files after ideas on how to converge via solvers. Equation Calculator and Hardcopy Plot prints are now (6 / 2005) accessible.
m-Freq - Pulse shaping filter program that finds the pole-zero locations of a transport function, H(s), seeking a matched filter. H(s)
equals a -desired- signal (Yout) divided by a accepted input signal (Yin). Both Yout and Yin are functions of frequency.