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#?

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Math .NET may be will be interesting for you.

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You might be interested in WPF Dynamic Data Display.

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

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Numerical Methods and the related projects might be of interest.