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Mathematics / PowerSurface: PowerSeries LSqFitting & SawFile 1.4 Free Download

 "PowerSurface offers linear/quadratic/higherpower leastsquare curve/surface fitting for the given..."
Quick Download PowerSurface: PowerSeries LSqFitting & SawFile 1.4


PowerSurface offers linear/ quadratic/ higherpower leastsquare curve/ surface fitting for the given columnwise numeric data for a function z = f(x) or z = f(x,y) of one or two independent variable(s), so that the fitted function is of the form z = a + b.x + c.x2 +... or z = a + b.x + c.y + d.x2 + e.xy + f.y2 +... respectively. To perform the fitting, the aforesaid algebraic power series function is assumed, and then the sum of the squares of deviations of zvalues (for the given points) from the assumed functionvalue is minimized, thereby generating a set of linear simultaneous equations. This set is then autosolved by standard Gaussianelimination method, giving the fitting parameters (coefficients) a, b, c etc. (users should refer to the tutorials). To avoid calculation errors, constant factors and decimalpoints in the given (x,y,z) data are first shifted but finally recorrected. The SawFile subroutine allows vertical copying/pasting of numeric data columns from text files.



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PowerSurface: PowerSeries LSqFitting & SawFile 
Version:  1.4 
File Size:  3309 KB 
Last updated:  20080229 
License:  Freeware $0.00 
OS:  Win95,Win98,WinME,WinNT 3.x,WinNT 4.x,Windows2000,WinXP,Windows2003 
Author:  Eastern Star Software

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