Top "Eigen" questions

Eigen is a C++ template library for linear algebra: matrices, vectors, and related algorithms.

How to use the Eigen unsupported levenberg marquardt implementation?

I'm trying to minimize a following sample function: F(x) = f[0]^2(x[0],...,x[n-1]) + ... + f[m-1]^2(x[0],...,x[n-1]) A …

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Worse performance using Eigen than using my own class

A couple of weeks ago I asked a question about the performance of matrix multiplication. I was told that in …

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How to remove a certain row or column while using Eigen Library c++

I am using Eigen library for my project. I am searching how to remove a certain row or column from …

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Eigen Convert Matrix to Vector

In MATLAB, the line below converts a Matrix to a Vector.It flattens the matrix column by column into a …

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How does OpenCV make use of Eigen?

When compiling OpenCV from source, there's the CMake option WITH_EIGEN, which says "Include Eigen3 support". However, nowhere in the …

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Mapping array back to an existing Eigen matrix

I want to map an array of double to an existing MatrixXd structure. So far I've managed to map the …

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how to concatenate Vectors in Eigen?

I have two vectorXd in my program and I like to concatenate them into one vector, so that the second …

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Eigen dynamic matrix initialization

I am having some trouble figuring out how to set the rows and columns of a MatrixXd at runtime in …

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Error mixing types with Eigen matrices

There was no quick find answer that I could see on stack for this problem so I thought I would …

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How do you make a matrix out of vectors in eigen?

I have four column vectors. I need to append them to make a four by four matrix. Is there a …

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