- optimized determinant calculations for small matrices (size <= 4)

  (only 30 muls for size 4)
- rework the matrix inversion: now using cofactor technique for size<=3,
  so the ugly unrolling is only used for size 4 anymore, and even there
  I'm looking to get rid of it.

1 files changed, 1 insertions, 0 deletions

diff --git a/Eigen/LU b/Eigen/LU
index 9d92196d5..c22eac2b5 100644
--- a/Eigen/LU
+++ b/Eigen/LU
@@ -5,6 +5,7 @@
 
 namespace Eigen {
 
+#include "Eigen/src/LU/Determinant.h"
 #include "Eigen/src/LU/Inverse.h"
 
 } // namespace Eigen