Initial commit

2026-06-01 15:55:59 +08:00
commit 40f9bdb590
1799 changed files with 362227 additions and 0 deletions
--- a/Eigen3/doc/snippets/MatrixBase_select.cpp
+++ b/Eigen3/doc/snippets/MatrixBase_select.cpp
@@ -0,0 +1,6 @@
+MatrixXi m(3, 3);
+m << 1, 2, 3,
+     4, 5, 6,
+     7, 8, 9;
+m = (m.array() >= 5).select(-m, m);
+cout << m << endl;