Squashed 'third_party/eigen/' content from commit 61d72f6
Change-Id: Iccc90fa0b55ab44037f018046d2fcffd90d9d025
git-subtree-dir: third_party/eigen
git-subtree-split: 61d72f6383cfa842868c53e30e087b0258177257
diff --git a/doc/examples/tut_arithmetic_dot_cross.cpp b/doc/examples/tut_arithmetic_dot_cross.cpp
new file mode 100644
index 0000000..631c9a5
--- /dev/null
+++ b/doc/examples/tut_arithmetic_dot_cross.cpp
@@ -0,0 +1,15 @@
+#include <iostream>
+#include <Eigen/Dense>
+
+using namespace Eigen;
+using namespace std;
+int main()
+{
+ Vector3d v(1,2,3);
+ Vector3d w(0,1,2);
+
+ cout << "Dot product: " << v.dot(w) << endl;
+ double dp = v.adjoint()*w; // automatic conversion of the inner product to a scalar
+ cout << "Dot product via a matrix product: " << dp << endl;
+ cout << "Cross product:\n" << v.cross(w) << endl;
+}