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Math.NET Numerics

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Hello, I'm testing the library to find solutions of systems of linear equations, and the result I get is always wrong. I give a couple of examples: The following system...

Hello: I find that all the vector created by Math.Net is the column vector, i want to convert it to row vector. the matrix has the method Transpose(), but I...

Hi there, Because SparseMatrix is not thread safe it cannot be used in any solver trying to do any modification in parallel (when the amount of columns is over 200)....

Is there a way for checking that a matrix is not "positive definite"? Regards Martin

I am trying to multiply a large Complex array with a scalar using the ScaleArray function of the LinearAlgebraControl class. The provider is {Intel MKL (x64; revision 15; MKL 2022.0)}....

I have been using the Erf function in C++ and while comparing the result of Erf() from MathNet, it returns a different result for the values close to and higher...

` var p = Fit.Polynomial(x, y, lineFitttinDto.Order);` `Fit.Polynomial` only return coefficient ,how i get standard error of the coefficient

I'm trying to make `PseudoInverse` work with no allocation and most of my code is not usable in this repo without a major refactoring, but I propose a potential improvement...

For multidimensional FDM calculations in C#, we can have more or less banded diagonal matrices. Initializing those is very handy in Python's `scipy`; for example see https://docs.scipy.org/doc/scipy/reference/generated/scipy.sparse.diags.html Building sparse matrices...