New Post: Solving Ax=B in visual basic
In the next couple of weeks there will be a nuget package that includes the MKL native provider. In the mean time, here are links to them:http://files.marcuscuda.com/mathnet.native.x86-64.zip -...
View ArticleNew Post: Solving Ax=B in visual basic
Hi Marcus. I downloaded those 2 DLL's to my main project folder, then I added that line you mentioned. Although, when I started debugging, Visual Studio poped up a window to browse a .CS file to add to...
View ArticleNew Post: Solving Ax=B in visual basic
Hi,You don't add them as a reference. You need to copy them to the output folder (i.e.:<project>\bin\release). What I normally do is add them to the project (Add -> Existing item) and then set...
View ArticleNew Post: Solving Ax=B in visual basic
WOW !It just flies! As I told you, on my mac it was taking about 2 or 3 seconds per iteration, while with mathnetnumerics it took about 1 min. Now it is performing like Fortran's LAPACK or even better....
View ArticleNew Post: QR Factorization for SparseMatrix
I have a trouble. When i use a big sparse matrix for QR factorization it fails and rises OutOfRange Exception. Could you help me please?SparseMatrix m = new SparseMatrix(....); rows count = column...
View ArticleNew Post: IR filter
Hi,will there be support for IR filter in Math.NET Numerics?I know there is Math.NET Neodym, but it depends on the discontinued Math.NET Iridium. It would be great to have the filters on top of...
View ArticleNew Post: IR filter
Yes, it would make sense to port them over (also all the windowing functions); we already have ported some sample generators to the .Signals namespace.What specific filters would you need? Also filter...
View ArticleNew Post: IR filter
We are interested in IIR filters for which we have pre-computed coefficients (no need for coefficient calculators ala butter()). The zero-phase filter filtfilt() would be really helpful, too.Thanks,...
View ArticleNew Post: Simplex Optimization
I'm not a math expert and need a Simplex optimization function, is there an example about this?ThanksAlessandro
View ArticleCreated Issue: SVD and L2Norm out of memory exception [5719]
Hi,I am working on image procession project and using SVD and L2norm on DenseMatrix. The matrix consists of of 40000 rows and 20 columns. It consists of 20 images of resolution 200*200 stacked as...
View ArticleCommented Issue: SVD and L2Norm out of memory exception [5719]
Hi,I am working on image procession project and using SVD and L2norm on DenseMatrix. The matrix consists of of 40000 rows and 20 columns. It consists of 20 images of resolution 200*200 stacked as...
View ArticleNew Post: Math.Net Numerics Svd vs. DGESVD
Hi,it may be a dump question but I've a program which is written in C and uses the dgesvd function of netlib (http://www.netlib.org/lapack/double/dgesvd.f).Now I want to rewrite what is done in the C...
View ArticleNew Post: Math.Net Numerics Svd vs. DGESVD
If I remember correctly, the managed Math.NET code is a port of the LINPACK SVD routine. I don't know the differences between the LAPACK and LINPACK implementations. The native provider uses LAPACK's...
View ArticleNew Post: Math.Net Numerics Svd vs. DGESVD
The U matrix is as close as the VT matrix if you look at the absolute values, but the first column of the U matrix is negated.Similar is the VT matrix but here it is the second row which is negated. As...
View ArticleNew Post: DenseEvd throws ArgumentException(Resources.ArgumentMatrixSquare)
Hi,every DenseEvd seems to throw an error if the matrix is not square, even though Hessenberg and real Schur conversions seem to be implemented. There is also a bool that is checked to see if the input...
View ArticleNew Post: Math.Net Numerics Svd vs. LAPACK DGESVD
Ok after looking at Math.Net Numerics code I found the comment, that it's SVD is equivalent to the GESVD LAPACK routine.What is the difference between LAPACK GESVD and LAPACK DGESVD? I know this is...
View ArticleNew Post: Math.Net Numerics Svd vs. LAPACK DGESVD
>that it's SVD is equivalent to the GESVD LAPACK routine.The comment was meant for the ILinearAlgebra interface and probably shouldn't have been copied to the managed code implementation. I'll...
View ArticleNew Post: Compute inverse function
For a given function f: x->f(x) I would like to compute numericallyits inverse function.In other word for a given y, I'd like to compute x such f(x) = y. Is there anything in the library to do so?
View ArticleNew Post: Math.Net Numerics Svd vs. LAPACK DGESVD
Well that could explain it. Thanks for your help and sorry for some maybe stupid questions..I at least should have been able to answer the GESVD and DGESVD myself..
View ArticleUpdated Wiki: Special Functions
Special FunctionsFactorialFactorial: FactorialLogarithmic Factorial: FactorialLnBinomial Coefficient: BinomialLogarithmic Binomial Coefficient: BinomialLnMultinomial Coefficient: Multinomial Code...
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