New Post: Nearest Correlation Matrix
Hello! As my math background is not that strong, I would like to know if you have seen an implementation of a Nearest Correlation Matrix algorithm with Math.NET Numerics. I believe it is simple, but...
View ArticleNew Post: Load/Stress and Deflection/Stiffness Analysis
Wanted to see if the addition of load/stress and/or deflection/stiffness analysis module would accepted? Some initial ideas in what would be included:Shear Force Calculations in BeamsBending Moment...
View ArticleNew Comment on "Linear Algebra"
The link to vote for using vectorized instructions is dead.
View ArticleNew Post: Setting the Starting Vector for Iterative Solvers
Hi guys, I recently inherited some Code at work, I'm however quite new to the Math.Net Numerics library. I want to solve a System of linear equations Ax=b, and I know quite a lot about the form of the...
View ArticleNew Post: Nearest Correlation Matrix
Hi Rafael, No, unfortunately I have not seen any such implementation with Math.NET Numerics yet, although it is certainly possible to do. We may want to have a closer look at this after v3 has been...
View ArticleNew Post: Load/Stress and Deflection/Stiffness Analysis
This looks very interesting. I wonder whether we would not better start a new Math.NET project on top of Numerics though, something like "Math.NET Engineering" or even something specific to mechanical...
View ArticleNew Post: Setting the Starting Vector for Iterative Solvers
Hi Florian, The iterative solvers accept a result vector, where the resulting solution is then put into. This vector is effectively also used as initial guess, although note that its values will be...
View ArticleNew Post: Setting the Starting Vector for Iterative Solvers
NB: we've had other requests for simpler manual iteration (e.g. to apply just a few iterations), so this is one of the areas we want to improve in v3. PS: the code above is against current master...
View ArticleNew Post: Setting the Starting Vector for Iterative Solvers
Great! That's exactly what I was hoping for. Thank you very much!
View ArticleNew Post: Tridiagonal matrix
Hi, I need to represent and solve a tridiagonal matrix. Do Math.Net Numerics have an efficient way to represent and solve this kind of matrix or should be represented and solved as a generic matrix?...
View ArticleNew Post: Tridiagonal matrix
Hi Although we have a specialized diagonal matrix type, there is none for tridiagonal matrices. In recent v3 alpha versions, if the matrix is small, I'd start with dense matrices and use a...
View ArticleNew Post: Tridiagonal matrix
NB: there are very efficient algorithms to directly solve tridiagonal matrix problems, we probably should consider to better support this common case.
View ArticleNew Post: Tridiagonal matrix
Thanks Christoph for your reply. Since the library does not support this specific case I am considering to implement by myself this algorithm. It seems simple and efficient
View ArticleNew Post: Turning off exceptions
Hi all, I'm using the 3.0.038 version ( some Alpha of the new version ). I have two quick questions. I'm getting many System.ArgumentException with the message "Value is too large for the current...
View ArticleNew Post: Turning off exceptions
Hi Christian, It turns out that only very few more iterations are required with these specific numbers - changing maxIterations from 100 to 110 fixes the problem. I suggest I permanently increase the...
View ArticleNew Post: Cubic Spline Interpolations with Boundary Conditions
Hi, I'm not sure I follow how to create a Cubic Spline Interpolation with Boundary conditions. In my specific case I have both the first and 2nd derivatives for the left boundary, and the right...
View ArticleNew Post: Turning off exceptions
cdrnet wrote: Hi Christian, It turns out that only very few more iterations are required with these specific numbers - changing maxIterations from 100 to 110 fixes the problem. I suggest I permanently...
View ArticleNew Post: Turning off exceptions
Unfortunately you can't influence it from user code, but I've increased it to 120 in master and plan a new alpha release in a few days. Thanks, Christoph
View ArticleNew Post: Nearest Correlation Matrix
Thank you! I`ve trying to port some implementations from R to Math.NET Numerics, but I had no luck since eigenvectors/values are calculated slightly different in both platforms and the implementations...
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