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install_eigen.md

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Install Eigen

Windows

  1. Download Eigen (at least v3.3.x): Eigen 3.3.2 zip file.
  2. Create a folder with the name eigen (e.g. /lib/eigen).
  3. Set the environment variable EIGEN_ROOT to point to that folder location.
  4. Unzip Eigen to the folder and then rename the unzipped folder (e.g. eigen-eigen-da9b4e14c255) to the name eigen3.

Linux

On Linux if need a command line way to do this try the following:

mkdir ~/eigen3
cd ~/eigen3
wget http://bitbucket.org/eigen/eigen/get/3.3.2.zip
unzip 3.3.2.zip
mv  eigen-eigen-da9b4e14c255 eigen3
rm 3.3.2.zip
echo export EIGEN_ROOT=~/eigen3 >> ~/.bashrc
source  ~/.bashrc