Where are the MatrixXd and VectorXd define in Eigen(c++)? I can't find the definition of them through the grep command

Question

I search through the entire source code of Eigen(https://github.com/eigenteam/eigen-git-mirror), but can not fine the definition of some types such as MatrixXd and VectorXd.

The document of Eigen(https://eigen.tuxfamily.org/dox/group__matrixtypedefs.html#ga99b41a69f0bf64eadb63a97f357ab412) says that MatrixXd is defined as

typedef Matrix< double , Dynamic , Dynamic > Eigen::MatrixXd

but I didn't find them is the source code.

Seems hard to make self-contained...? | Which `grep` command did you use? — user202729, May 11 '18 at 02:45
Instead of writing thanks comment you can just upvote and accept the answer. (read the [help] to know what are those) — user202729, May 11 '18 at 03:49

score 5 · Accepted Answer · answered May 11 '18 at 03:23

MatrixXd is defined by the expansion of the macro EIGEN_MAKE_TYPEDEFS_ALL_SIZES(double, d) on line 451 of Matrix.h.

In fact, that macro ends up expanding to the typedefs for Matrix2d, Vector2d, RowVector2d, Matrix3d, Vector3d, RowVector3d, Matrix4d, Vector4d, RowVector4d, MatrixXd, VectorXd, RowVectorXd, Matrix2Xd, MatrixX2d, Matrix3Xd, MatrixX3d, Matrix4Xd, and MatrixX4d.

Where are the MatrixXd and VectorXd define in Eigen(c++)? I can't find the definition of them through the grep command

1 Answers1