Hi guys,I am looking for a good Freeware/Commercial Numerical Library to use in VB.NETI am a little tired to reinvent the wheel whenever I need to work with numbers.I'm looking for something that handles linear algebra, some time-series analysis/NonLinear Econometrics/simulation tools.I've seen a number of commercial products out there, is there any of them you would recommend?Regards,GPS: I already searched the messageboard and I didn't find anything suitable......

Hi G,take a look at www.webcabcomponents.com/dotNET/index.shtmlNot sure if it's exactly what you're looking for but Dr. Ben is pretty amenable to requestsDavid

IMSL (visual numerics), dnanalytics, extremeoptimization, Matlab .NET, BlueBit, NMath (Centerspace), or ILNumerics.Net

Quote...some time-series analysis/NonLinear Econometrics/simulation tools...I try to be "amenable" and on this note I have a time-series Component I use in-house (and used by 3rd Party ISVs .NETCharting product) which could we wired up with\ non-linear regression analysis (Levenberg - Marquardt algorithm withANOVA analysis). I mentioned this because I am not aware of such time series functionality for the .NET platform availableon the open market. PM me if interested.QuoteI am a little tired to reinvent the wheel whenever I need to work with numbers.I could not agree more. For me the distribution of quantitative finance and numerical techniques within softwareComponents, is a more natural and convenient medium than paper textbooks.

QuoteI try to be "amenable" and on this note I have a time-series Component I use in-house (and used by 3rd Party ISVs .NETCharting product) which could we wired up with\ non-linear regression analysis (Levenberg - Marquardt algorithm withANOVA analysis). What is the performance of this C# component, relative to C++?In my experience C# is [20, 30]% slower.BTW I find C# to be a well-designed language, but my preference is to use it for GUI and C++ for the number-crunching (the rationale being that C++ is fast, ISO standard and hence future-proof If I invest in C#, how can I be assured that it will be around later?

QuoteWhat is the performance of this C# component, relative to C++?No idea, I have not implemented it in C++, we have a Java implementation whose performance is almost identical.QuoteIf I invest in C#, how can I be assured that it will be around later?C# in particular, and .NET in general will be core technologies of the entire Windows platform for the next10-15 years at least. Hence, you are future proofed for at least typical IT coding career duration. I see theproblem of future proofing on the C++ side since it is reasonable to expect in 10 years to have staff whocan program in C#, but I am not so sure about C++.

QuoteC# in particular, and .NET in general will be core technologies of the entire Windows platform for the next10-15 years at least. Hence, you are future proofed for at least typical IT coding career duration. I see theproblem of future proofing on the C++ side.This is speculation. I think 10 years is an absolute upper limit. C# is a traditional OO language, so anything is possible. OO is not for mega systems.Quoteit is reasonable to expect in 10 years to have staff who can program in C#, but I am not so sure about C++Based on my own experience I would not necessarily agree with either of these statements. There are many C++ programmers in their thirties, some in their 40's and one or two in fifties. Not a problem.

It is the job of every executive the talk up the prospect of their industry and talk up their place in that industry....Considered porting your books from C++ to .NET and/or Java?

QuoteOriginally posted by: DrBenConsidered porting your books from C++ to .NET and/or Java?Good idea, in fact C# is what we are working on. But not for everything, for example parallel processing can only be done in C++, really. C# is nice for the desktop (what Java is not), but Java seems to be good for distributed processing, what C# is not.Again, performance can be key. Would there ever be a reason for writing a MC framework in C#?