devtools/eigen
1
0
Fork 0
mirror of https://gitlab.com/libeigen/eigen.git synced 2026-04-10 11:34:33 +08:00
Code Issues Packages Projects Releases Wiki Activity

Fix bug in MatrixFunctions for matrices with multiple eigenvalues.

Browse Source 
Store indices, not eigenvalues, in clusters.
Bug was introduced in changeset a3a55357db
.
This commit is contained in:
Jitse Niesen
2013-07-26 15:39:18 +01:00
parent 6d86cd7224
commit 70131120ab
3 changed files with 15 additions and 15 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
Eigen/src/Core/util/XprHelper.h
View File

@@ -307,9 +307,9 @@ struct transfer_constness
*
* Example. Suppose that a, b, and c are of type Matrix3d. The user forms the expression a*(b+c).
* b+c is an expression "sum of matrices", which we will denote by S. In order to determine how to nest it,
* the Product expression uses: nested<S, 3>::ret, which turns out to be Matrix3d because the internal logic of
* the Product expression uses: nested<S, 3>::type, which turns out to be Matrix3d because the internal logic of
* nested determined that in this case it was better to evaluate the expression b+c into a temporary. On the other hand,
* since a is of type Matrix3d, the Product expression nests it as nested<Matrix3d, 3>::ret, which turns out to be
* since a is of type Matrix3d, the Product expression nests it as nested<Matrix3d, 3>::type, which turns out to be
* const Matrix3d&, because the internal logic of nested determined that since a was already a matrix, there was no point
* in copying it into another matrix.
*/