Poll: what platforms should Math.NET Numerics support?
@cdrnet wrote: I wonder whether there are any developers out there still requiring .Net 3.5 or Silverlight 5.0 support for future Math.NET Numerics versions (v4 and later), and whether there is any...
View ArticleMaximum matrix size
@ducloyer wrote: HelloI'm trying to use MathNet.Numerics.LinearAlgebra to post-treate results of big mechanical calculation model.On small model it's ok, but the last test I've done (more than 15400...
View ArticleCurve fit with "polynom" y = a + b.x + c.x^-2 + d.x^2
@kst wrote: Hi, is there a possiblity to do a curve fit with a "polynomial" containing negative exponents (so it is not really a polynomial)? I should get the coefficients base on on a curve with...
View ArticleMKL provider on OSX for Mono/Xamarin?
@lionpeloux wrote: Hello, I'm really interested by your .net "numeric" project for my research works in structural analysis. I've been reading your MKL help page but it's still not clear for me if...
View ArticleNon-linear regression
@eggord wrote: Hi everybody, i have a question. I want to fit a sigmoid function. Is there a non-linear regression method in math.net or do i have to write my own LM-Algo. ? Thank you! Posts: 3...
View ArticleDouble-precision Complex data type
@EdmundOwen wrote: Hi, I would like to use Math.Net to do Complex algebra but I can't find the double-precision Complex data type in the library. The documentation throws a 404 error when I try to...
View ArticleAre there any code samples about using Mathnet.Numerics?
@River wrote: I am a new comer. And I am looking for some code sample. I found this on NuGer:http://nugetmusthaves.com/Package/MathNet.Numerics.SampleBut when I tried to install it from the Package...
View ArticleGeneralized eigenvalues
@Pavel wrote: What is the most effective way to solve generalized eigenvalues problem? We looking for v, D for symmetric matrix A, and non-symmetric matrix B, such that A * v = B * v * D Our current...
View ArticleGauss-Legendre Quadrature Feature
@larzw wrote: Hello! Would Integration via Gauss-Legendre Quadrature be an interesting feature to add? It would be similar to the GNU Scientific Library function gsl_integration_glfixed see...
View ArticleLinear Regression with regularization (lasso / ridge regression)
@Herger wrote: Hello, I'm new to Math.Net Numerics and was browsing the functionalities in the doc and found the part "Regularization" in the linear regression topic missing. Any plan for adding it...
View ArticleInverted Matrix Values are NaN and Infinity
@atekgul wrote: Hi,I am solving a least squares adjustment problem, and trying to invert a 3x3 matrix, but the result matrix values are getting NaN or Infinity. I have tried to invert this 3x3 matrix...
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Cubic-spline interpolator to fit osculating circles
@DavidRutten wrote: Initially posted this on StackOverflow... but not sure if that was a good idea. How does one go about calculating the proper n-th order coefficients for a Math.NET cubic spline...
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Finding asymptotes in interpolations
@DavidRutten wrote: Sometimes Equidistant-Polynomial and Bulirsch-Stoer interpolation result in discontinuities in the final graph, making it look silly because I just connect all sampled values left...
View ArticleError thrown from Fit.Polynomial
@DRNadler wrote: I tried to fit a simple polynomial: polyFit = MathNet.Numerics.Fit.Polynomial(xSlope, yExpectedPRgap, 3);Input arrays are both double[3] and do work with a line fit as in: Tuple...
View ArticleGet submatrix by array of column and row indices
@tsnewer wrote: Hello,How can i choose some rows in a matrix arbitrarily to product a new matrix ? For example, i can do it in matlab like this, A=rand(5,5); index=[1 3 5]; B=A(index,:); . Posts: 3...
View ArticleHow to create random orthogonal matrix
@jdelange wrote: I am studying the easiest way to create (uniform) random filled orthogonal matrices. I think one way would be a A=QR-decomposition of a random filled matrix A, whereby Q would give me...
View ArticleFFT Performance
@franktore wrote: I'm curioius to know if you use native providers algorithms or purely managed ones for the IntegralTransforms package.The reason I am wondering is that when comparing the Fourier...
View ArticleWrong compute of the matrix rank!
@Lili wrote: For a matrix of 4-by-4, as follows Matrix A = DenseMatrix.OfArray(new double[,] { {4,4,1,3}, {1,-2,1,0}, {4,0,2,2}, {7,6,2,5}});The rank computed with the equation as follow is 3 var...
View ArticleHow to use Cross Product
@Ming_Da wrote: Hello everyone.Recently I try to use Math.net in C# program.today I want to make Cross Product:var v1 = new DenseVector(new[] { 1.0, 2.0, 3.0 }); var v2 = new DenseVector(new[] { 1.0,...
View ArticleExponential Fit
@JWallaceDev wrote: Hi There I've recently used Fit.Polynomial to calculate poly lines - and this worked really well. I'm just wondering if there is something similar to calculate an Exponential fit?...
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