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Math tool for curve and surface fitting.

Visual Fitting 2.3.0


Math tool for linear, nonlinear curve fitting and surface fitting, curve and surface can be created.

free download trial (2.44 Mb) :: order online ($80.00)


Adds data curve fitting functions to Excel

Data Curve Fit Creator Add-in 2.70


Adds data curve fitting, interpolation and data smoothing functions to Excel. Functions include polynomial fits, several types of splines, and local regressions. Filters include moving average, Gaussian smoothing and median filtering.

free download trial (6.92 Mb) :: order online ($79.95)


Nonlinear regression analysis - DataFitting

Regression Analysis - DataFitting 1.7.4


DataFitting is a powerful statistical analysis program that performs linear and nonlinear regression analysis (i.e. curve fitting).

free download trial (2.22 Mb)



Simplify the task of curve fitting.

FindGraph 2.30


FindGraph is a graphing, curve-fitting, and digitizing tool for engineers, scientists and business. Discover the model that best describes your data.

free download trial (3.32 Mb) :: order online ($79.95)


Data and curve auto fitting software.

NdCurveMaster for mac OS 1.2.2


ndCurveMaster was designed to find optimum equations to describe empirical data using a regression method. ndCurveMaster is the first and only program to find the ideal equation to allows the auto fitting of an unlimited number of input variables.

free download trial (3.49 Mb)


CurveFitter performs regression analysis

CurveFitter 4.5.14


CurveFitter performs statistical regression analysis to estimate the values of parameters for linear, multivariate, polynomial, exponential and nonlinear functions.

free download trial (3.06 Mb)



Nonlinear regression analysis - CurveFitter

Regression Analysis - CurveFitter 4.5.8


CurveFitter program performs statistical regression analysis to estimate the values of parameters for linear, multivariate, polynomial, exponential and nonlinear functions.

free download trial (3.07 Mb) :: order online ($15.00)


Plot and analyze graphs of equations and data

Advanced Grapher 2.2


Graphing, curve fitting and calculating software. Graphs Cartesian, polar and parametric functions, graphs of tables, implicit functions and inequalities. Calculus features: regression analysis, derivatives, tangents, normals and more.

free download trial (1.38 Mb)


Fit w/ Lorentz, Sine, Power, + Exp. Series

CurvFit 6.11


A curve fitting program: Lorentzian, Sine, Exponential & Power series are available models to match your data. A Lorentzian series is recommended for real data especially for multiple peaked data. Another improved productivity example.

free download (3.68 Mb)


2D/3D Technical Plotting and Data Analysis!

SimplexNumerica 9.1.67.1


2D/3D technical graphics plotting and data analysis software for your plotting needs. Curve fitting, FFT and a presentation software! Download a demo of our analysis and plotting software!

free download (21.77 Mb)


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