第一名的3D曲线套配软件! 拥有453,697,387 个方程式。唯有本软件能从数以万计的方程式中，搜寻出任一符合3D数据的正确方程式。如无合适的方程式，能增加15个使用者自身定义的函数，并与TableCurve本身提供的方程式相结合，并可产生C、FORTRAN、Pascal及BASIC的函数供您测试使用。

如果有一堆X,Y,Z数据,虽然大概知道应该是属于某种曲面函数，但无法找出其正确的系数如 y=a+bX+cY+d*X*Y a,b,c,d=? 如何找出a,b,c,d您该怎么办? 用Curve Fitting Suite-TableCurve 3D，Curve Fitting Suite会自动地套配与找出最合适的方程式 。

2D方面 y=f(x)能从3665的方程式中，搜寻出最符合2D数据的方程式。

3D方面 z=f(x,y)能从453,697,490的方程式中，搜寻出最符合3D数据的方程式 。

且精度高的小数以下38位数。

如果没有合适您的方程式，你也能自订方程式。

**—— Overview**

**TableCurve 3D – Model Complex Data Sets Fast and Easy**

**Eliminate Tedious Data Analysis Chores with TableCurve 3D**

TableCurve 3D is the first and only program that combines a powerful surface fitter with the ability to find the ideal equation to describe three dimensional empirical data.

TableCurve 3D uses a selective subset procedure to fit 36,000 of its 453,697,387 built-in equations from all disciplines to find the one that provides the ideal fit – instantly!

What once could take days of tedious work now takes minutes, with a much more powerful result.

**—— Function**

**● Find Optimum Equations to Describe Empirical Data**

TableCurve 3D® gives scientists and engineers the power to find the ideal model for even the most complex data, including equations that might never have been considered. TableCurve 3D’s built-in equation set includes a wide array of linear and nonlinear models for any application:

▶ Linear equations

▶ Polynominal and rational functions

▶ Logrithmic and exponential functions

▶ Nonlinear peak functions

▶ Nonlinear transition functions

▶ Nonlinear exponential and power equations

▶ User-defined functions (up to 15)

TableCurve 3D’s state-of-the-art surface fitting includes capabilities not found in other software packages:

▶ In addition to standard least squares minimization, TableCurve 3D’s non-linear engine is capable of three different robust estimations: least absolute deviation, Lorentzian minimization and Pearson VII Limit minimization.

▶ Option to change the maximum number of terms permitted when fitting linear equations (minimum 3; maximum 11)

▶ On systems that support multi-threading, TableCurve 3D’s Background Thread Processing option allows fitting to occur without any form of user input

▶ Option to set the default term significance anywhere from 1 to 15.

**● Automation Takes The Trial And Error Out Of Curve Fitting**

Using its selective subset procedure, TableCurve 3D will fit 36,000 of the over 450 million built-in equations or just the ones you need – instantly. With TableCurve 3D, a single mouse click is all it takes to start the automated curve fitting process – there is no set up required! You can even enter your own specialty models to be fit and ranked along with the built-in equations. TableCurve saves you precious time because it takes the endless trial and error out of curve fitting.

**● User-Defined Fit Functions**

Up to 15 user-defined equations can be entered and ranked along with the built-in equations. These specialized models can contain most mathematical constructs, including special functions, series convergence and conditional statements, differentiations, integrations and parameter constraints. TableCurve 3D even offers the option of graphically adjusting equation parameters to assure convergence for the fit of user-defined models. Unlike most surface fitting programs, TableCurve 3D’s user-defined functions are compiled so they can be fitted at nearly the speed of the built-in equations. For maximum flexibility, TableCurve 3D gives you the option to save your functions as individual files, in libraries or both.

**● Visually Discover the Best Equation to Model your Data: Graphically Review Surface Fit Results**

Once your XYZ data have been fit, TableCurve 3D automatically sorts and plots the fitted equations by the statistical criteria you select (r2, DOF adjusted r2, Fit Standard Error or the F Statistic). Graphically review the fitted results as you scroll through the equation list. A 3D residuals graph as well as parameter output are generated for each fitted equation. Add confidence or prediction intervals to the graph to detect outliers in your data. You can also automatically display a 2D contour plot on the top and bottom of the surface fit graph to get another view of your data. Data, statistical and numeric summaries are also available from within the Review Surface Fit window so you can further analyze fit results.

**● The Best Fit**

Viewing a surface fit from all angles is imperative in determining whether or not a given fit is accurate. Using a simple interface, TableCurve 3D lets you view a graph from any angle. It will even animate the graph automatically in a specified XY and/or Z angle sequence. Just sit back and observe every nuance within the fit. TableCurve 3D gives you all of the tools you need to discover the model that best meets your requirements for the ideal fit.

**● Flexible Output Options**

Output TableCurve 3D’s publication-quality graphs in black and white or color, portrait or landscape. You can also produce files containing data and equations in Lotus, Excel, ASCII, Quattro Pro and SigmaPlot formats. TableCurve 3D can speed up your programming by generating actual function code and test routines for all fitted equations in FORTRAN, C, Basic and Pascal.

**● All This Power - and Still Easy to Use!**

TableCurve 3D takes full advantage of the Windows graphical user interface to simplify every aspect of operation – from data import to output of results. Import data from many popular file formats including SigmaPlot, Excel, Lotus, SPSS and ASCII. Once your data are in the TableCurve editor, start the automatic fitting process with a single mouse click. Choose to fit all equations, select a group of equations or create a custom equation set. All equations are readily available from the Toolbar or TableCurve’s Process Menu. You can even set up TableCurve 3D to begin fitting the moment data are imported or modified with Background Thread Processing Fitting. Users consistently comment that – out of the box, without reading the instructions – TableCurve is highly intuitive, easy-to-use and remarkably simple to learn.

**TableCurve 3D System Requirements**

Hardware

Windows 10, 8.x, 7, Windows Vista, 95, 98, NT and XP (32 bit)

33mhz 486 or higher

8MB RAM (12MB Recommended)

5MB free hard disk space