The NMath Stats installer places assembly NMathStats.dll in directory <installdir>/Assemblies, and in your global assembly cache. To use NMath Stats types in your application, add a reference to NMathStats.dll.
You can build your application using the Any CPU build configuration, and deploy to either 32-bit or 64-bit environments. (If you are building for .NET 4.5 or higher, also ensure that the Prefer 32-bit flag is unchecked, under Build | Platform target in your project properties.)
NOTE—A valid license key must accompany your deployed NMath Stats code. For more information, see "NMath License Key" in the NMath User's Guide.