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DMFitter ActiveX control
by RRR
DMFitter ActiveX control allows you to add sophisticated regression analysis tools to your software in a few lines of code. Both linear and nonlinear (LevenbergMarquardt) least squares curve fitting algorithms with user defined models are available.
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Advanced Grapher
by Alentum Software, Inc.
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.
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FindGraph
by UNIPHIZ Lab
FindGraph is comprehensive, featurerich graph editor, as well as a curve fitting and digitizing tool for engineers, scientists and graduate students. Convert plots back to X,Y data from any published report for later processing and manipulations.
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NLREG
by Phillip H. Sherrod
NLREG performs nonlinear regression and curve fitting. NLREG fits a mathematical function whose form you specify to a set of data values. Virtually any type of function can be fitted.
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TriLookup Mac
by Trimill Industrial Systems Inc.
Excel addin with eleven powerful worksheet functions for 1, 2 and 3 variable lookup and interpolation (closestvalue, linear, piecewise parabolic or hyperbolic, cubic spline) and polynomial curve fitting. Includes online help and example workbooks.
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TriLookup
by Trimill Industrial Systems Inc.
Excel addin with eleven powerful worksheet functions for 1, 2 and 3 variable lookup and interpolation (closestvalue, linear, piecewise parabolic or hyperbolic, cubic spline) and polynomial curve fitting. Includes online help and example workbooks.
excel addin


SimplexNumerica
by Dipl.Phys.Ing. Ralf Wirtz
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!
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LAB Fit Curve Fitting Software
by Wilton Pereira da Silva
Curve fitting (fit), nonlinear regression, treatment of data, basic statistics, error propagation, 2D and 3D graphs, confidence band, uncertainty, error bars, extrapolation, chisquare, correlation coefficient tests, covariance matrix, math tools.
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DataFitX
by Oakdale Engineering
DataFitX is a COM component (inprocess ActiveX DLL) which allows you to add a powerful nonlinear regression (curve fitting) engine to your software with just a few simple lines of code in any software or development environment that supports COM.
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Graphit
by Gecces Software Development
Low cost 2D function plotting software. Use up to 8 functions with cascades. Displays 2 simultaneous plots with cursors positions and deltas. File load, save, and print. Input point overlays for curve fitting. Trig, Ln, Log functions supported.
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