NMath

Using NMath Charts with .NET 4.0

Posted on by Ken Baldwin
The NMath Chart DLLs (NMathChartMicrosoft.dll and NMathStatsChartMicrosoft.dll) are built against the .NET 3.5 version of the Microsoft Chart Controls for .NET (System.Windows.Forms.DataVisualization). The .NET runtime will not automatically replace this reference with the version of the Microsoft Chart DLL built into the .NET 4.0 Framework, unless you explicitly tell it to do so by adding the fol...
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New Versions of NMath Libraries Released

Posted on by Ken Baldwin
CenterSpace is proud to announce the immediate availability of new versions of our .NET math libraries, NMath 5.1 and NMath Stats 3.4. This release adds many new features and performance enhancements. Version 5.1 of NMath adds: Assembly NMathChartMicrosoft.dll containing class NMathChart, which provides static methods for plotting NMath types using the Microsoft Chart Controls for .NET. [More]...
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Fitting Geometric Primitives to Points Using Nonlinear Least Squares

Posted on by Ken Baldwin
We were recently contacted by a customer looking for help on how to use NMath to fit geometric primitives to clouds of 2D points. The solution is to cast the problem as a minimization. In the space of the parameters which define the geometric object, minimize the residuals with respect to the 2D points. NMath provides .NET classes for solving nonlinear least squares problems such as this, using th...
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Accessing .Net Libraries in SQL Server

Posted on by CenterSpace
In previous posts we demonstrated calling CenterSpace's NMath libraries from Excel. Some customers asked if we could call these libraries from Microsoft's SQL Server so we decided to give it a shot. It turns out the problem is a substantially harder problem to solve as the SQL environment is an order of magnitude more complex. This post will show it is possible, but with a few caveats. T...
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Advanced Curve Fitting using Excel and NMath

Posted on by CenterSpace
In recent blog posts, we have discussed how to call CenterSpace's Libraries from Excel. In his March 2010 blog post, CenterSpace's Ken Baldwin demonstrated how to replicate Excel's existing Trendline functions using C# and NMath. In this post, we will demonstrate the advanced curve fitting functions available in the CenterSpace libraries that could be easily be integrated into Excel analysis wor...
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