Speed of Matrix Math Solving Ax=B MKL vs Managed
@SilverShaded wrote: Hi, i've just started to use Math.Net numerics to solve Ax=B and noticed a significant speed increase over various Matrix inversion algorithms (yes I know inverting a matrix is...
View ArticleCreating Matrix from CSV VB.net
@Roger_Garshol wrote: Hi,I'm trying to create a matrix and populating this new data structure with values i've stored in a CSV file but I keep running into problems. My latest attempt is giving me a...
View ArticleAny interests in element wise operations on vector/matrix with F#?
@albertp007 wrote: Hi all, would anyone be interested in having matrix/vector support (or expose) element wise mathematical operations when using them in F#? Something like the below: > open...
View ArticleChange 'vector' and 'matrix' builder function in F# to take sequences instead...
@albertp007 wrote: Hi all, the current 'vector' and 'matrix' functions in the F# extension modules take lists as input and create a DenseVector/DenseMatrix respectively. How about we change them to...
View ArticlePlease implement tensor support
@Pavel_Konovalov wrote: Many modern application requires tensor support, not just matrices. Posts: 1 Participants: 1 Read full topic
View ArticleUsing IPreconditioner and Iterator in BiCgStab
@hadiahameed wrote: Hi, I want to use BiCgStab Method to solve a system of linear equations Ax = b in which A is not symmetric. But I don't seem to understand how to instantiate IPreconditioner and...
View ArticleNew implementation for calculating nearest positive definite matrix using...
@David_D wrote: Hello, I worked on a feature that I couldn't find in the library. It takes as an input a non positive definite but symmetric matrix, and calculates the nearest positive definite matrix...
View ArticleApply linear regression using Mathnet library and VB.net
@duarte wrote: dear all, I would appreciate if someone could help me solving this problem: I need to apply a simple linear regression analysis in visual studio using VB.net and I'm using the Math.Net...
View ArticleReferring to results coming from Math.NET Numerics from within scientific papers
@hkoestin wrote: Dear all, in my projects I am using Math.NET for calculation of different things for statistical evaluations of data. End-users (physicians) are doing quite complex analysis of medial...
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How to use WeightedRegression
@heering.eas wrote: Hi! I'm new to Math.NET.I need to use WeightedRegression.Weighted() but I don't know how to build the Predictor matrix X.What I have is:double[] xDatadouble[] yDatadouble[] weights...
View ArticleAssignment "=" Operator with Matrices
@JMcCabe wrote: It appears that the assignment operator with MathNet linear algebra is functionally different from the standard C# assignment operator. It seems with MathNet, if you say 'matrix1 =...
View ArticleSolving for a (M x N) Matrix when N > M
@Jim_R wrote: Hi, Newbie question here. We are trying to do Fluid Calculations and I set up a basic C# program to test out different scenarios, I'm running into an issue running a MxN matrix where...
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ODE Solvers Basic Usage
@JMcCabe wrote: I've searched everywhere for some basic info/tutorial on how to implement the ODE Solvers library, and in particular the 'RungeKutta.FourthOrder' method. Aside from the info in the...
View ArticleWay to import structure variables from .mat file to C#
@MengGu wrote: Is it possible to import structure variable from mat file to C#? On the other hand, can we export a set of arrays as a structure variable in .mat format? If possible, please give an...
View ArticleRobust Spline or Gaussian Filters
@NMK wrote: Is there a function within Math.Net that is similar to the Robust Spline or Gaussian Filters found in ISO/TS specifications? I've already created a function for Cardinal Splines but that...
View ArticleOutOfMemoryException with Matrices
@maxmedv wrote: Hello! I've this problem with initialisation huge matrices such as 10000x10000. Asking for help or may be you know how can i keep in memory two or three this matrices without the...
View ArticleWeighted Multidim Regression: Fit.MultiDimWeighted
@vovjkee wrote: Hello, guys.I need to regress 2D weighted sample like this: (X11, X12) -> Y1, Weight1(X21, X22) -> Y2, Weight2.....(XN1, XN2) ->YN, WeightN. into linear surface with...
View ArticleSchwarz-Christoffel Mapping
@DavidRutten wrote: On page 6 of this paper, a conformal mapping from unit disc to unit square is outlined. (Further details on page 19.) It seems to require 'incomplete Legendre elliptic integrals of...
View ArticleResample log file to a different rate
@Moi_Moi wrote: Hi,I've a txt file containing a datas log at 171.14256985Hz and I would like to resample all the datas to a useful rate like 171Hz for example.Could you tell me if it is possible with...
View ArticleGoodnessOfFit.RSquared returning NaNs
@Vrda wrote: Evening all, I am new here, and new with C#. Earlier in this year I started to work onone scientific project, and because I needed a lot of numeric I installedpackage id MathNet.Numerics,...
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