Major linear algebra rework since v2.1, now available on Codeplex as well (previous versions were only available via NuGet).
Also available as NuGet packages:
PM> Install-Package MathNet.Numerics
PM> Install-Package MathNet.Numerics.FSharp
New: instead of the special Silverlight build we now provide a portable version supporting .Net 4, Silverlight 5 and .Net Core (WinRT) 4.5:
PM> Install-Package MathNet.Numerics.Portable