Code libraries/applications in C#

I am refreshing my memory on C# (first used it several years ago), and I want to look at some real world quality code (rather than the simplistic ones used in many books).

My preference would be mathematical/statistics libraries written in C# as I would like to see how Matrices and PDEs (partial differential equations etc) are implemented in开发者_如何学运维 C#.

Can anyone recommend a good quality online resource where I can view some 'industrial grade' preferably (Math/Stats) library/application written in C#?

Math .NET may be will be interesting for you.

You might be interested in WPF Dynamic Data Display.

Mono (an open source, cross platform implementation of .net) is also open source.

Numerical Methods and the related projects might be of interest.