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Questions tagged [math.net]

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256 questions
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MathNet - 'System.TypeInitializationException'

I am trying to parse string of expression using MathNet in C# and when I try this code: var h = MathNet.Symbolics.Infix.ParseOrUndefined("1/(a*b)"); it threw exception. "An unhandled exception of type 'System.TypeInitializationException'…
Renton Thurston
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Extracting common terms with MathNet Symbolics

I'm using MathNet Symbolics to handle the symbolic algebra portion of a program I'm working on. The general use is create a pair of symbolic formulas, and then divide those two formulas. This works quite well most of the time. However, sometimes, it…
Matt Sieker
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Find covariance of Math Net matrix

I'm using MathNet Numerics matrices and trying to find out covariance of a matrix. How can we find covariance of matrix? We have method to find covariance between two IEnumerable under Statistics…
malkam
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Mono Mathnet MKL Nativer provider not found

I'm trying to use the Mkl native provider from mathdotnet with mono in Linux. I'm using monodevelop and installed MathNet.Numerics and both MathNet.Numerics.MKL.Linux-x64 and -x86 packages via the build in NuGet package manager. When I try this…
Robert
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Parse expression with double coefficient values in mathdotnet

I am using Infix.Parse to parse equations like apples + oranges = 2 Expression aleft = Infix.ParseOrThrow("apples + oranges"); Expression aright = Infix.ParseOrThrow("2"); Sometimes I need to parse fractional values, like 2.5*tax + income =…
shyamupa
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Why is the MathNet.Numerics NuGet package so big?

I recently added MathNet.Numerics through NuGet to my C# solution. The package directory in the solution folder ballooned to about 50 MB! Yet I can simply download the MathNet dll and use only that, which takes up only 1.5 MB. If I want…
Superbest
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Multiple Regression with Math.net in VB.Net

So I am trying to use math.net in vb.net. I have copied the c# excerpt from the website and tried to convert it to vb.net. I have gotten to this point: Dim m = Matrix(Of Double).Build.DenseOfArray({{1.0, 4.0}, {2.0, 5.0}, {3.0, 2.0}}) Dim y =…
Scott Craner
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RunningStatistics: Is there a way to track only a window of the last 5 samples?

MathNet.Numerics.Statistics has only Push() method, there is no Pop() method. Let's say my window size is set to 5, and I've already sampled 5 values using Push(), I would want at that point that when I sample the next (sixth) value, it would remove…
Amir
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Matrix pointwise operation using a function

How do I change the value of each element in a Matrix that involves a function call. Something like matrix[i,j] = funct(matrix[i,j]*2)-1;
Yang
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Linear fit with Math.NET: error in data and error in fit parameters?

I am trying to use Math.NET to perform a simple linear fit through a small set of datapoints. Using Fit.Line I am very easily able to perform the linear fit and obtain the slope and intercept: Tuple result = Fit.Line(xdata,…
Nick Thissen
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Getting the dimension of a Vector in Math.NET

If I was given a Vector in Math.NET, how can I check the number of dimensions that it has? I can't seem to find anything in the documentation
9a3eedi
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Impossible to remove rows from matrix with Math.NET Numerics

I have a weird problem with Math.NET Numerics. Let say I have a matrix well instantiated and filled (I verified by writing it in a text file), which size is (949 x 30). All I want is to remove a row from this matrix. But it seems that I…
Kabulan0lak
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MathNet.Numerics not utilizing the Mkl native provider

I have an F# project that uses MathNet.Numerics for Linear Algebra routines. I have placed the following code in an F# module: module LinearAlgebra open MathNet.Numerics open MathNet.Numerics.LinearAlgebra.Double open…
JTS
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Is there a method in recent Math.Net to return the SquaredNorm of a vector?

In the old version (Iridium) there was a method Vector.SquaredNorm() but in the most recent stable version of Math.Net there is none available. What method should I use?
Stécy
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math.net installation for F#

I am quite new to F# and am trying to install math.net on Ubuntu 13.04. The following page recommends using the Package Manager Console to install on Linux 64 https://www.nuget.org/packages/MathNet.Numerics.MKL.Linux-x64/ but I am puzzled by the…
gappy
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