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Questions - eigen3

test if a MatrixBase is a fixed size or dynamic in Eigen3

Hopefully this is an easy one and I'm just failing at google today....but. Given MatrixBase<double> &mat is there a way to test if mat is fixed or dynamic size? I don't think this will work...
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stewpend0us

c++

eigen3

Votes: 0

Answers: 0

Exporting Eigen csr_matrix to python via Pybind11 without converting to scipy.sparse.csc/csr matrix

I would like to export the eigen csr sparse matrix to python in order to perform benchmarks. I'm well aware that the scipy.sparse csr matrix is following the canonical format of a csr matrix, while ei...
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Peter

python

c++

eigen3

pybind11

Votes: 0

Answers: 1

Latest Answer

o.k., posting questions seems to help. Although I struggled with this problem for some time now, only after posting the question I found a solution, namely, I have to include a PYBIND11_MAKE_OPAQUE(Tp...
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Peter

How to use ceres-solver to solve high dimensional non-linear problem?

     I need to solve the optimization problem: . A and b are known. I use Zero to represent A and b to facilate the expression in the following code. The error is caused by problem.AddResidualBlock(co...
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Jiang Han

c++

eigen3

ceres-solver

Votes: 0

Answers: 1

Latest Answer

I guess that If your X is a vector, you need to loop through it and add a residual a residual block for each x. Makes sense?
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Taiguara Tupinamb&#225;s

Wrong number of iterations when BiCGSTAB called with guess

I am using the c++ and Eigen library to solve a system with BiCGSTAB solver. #include <Eigen/IterativeLinearSolvers> At some point in the code I initialize the matrix A and rhs vector rhs int N...
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skrat

c++

solver

eigen3

Votes: 0

Answers: 0

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