init

external/test_eigen.cpp

@@ -0,0 +1,42 @@
+
+
+
+
+#include <iostream>
+#include <Eigen/Core>
+#include <Eigen/Dense>
+
+#include <sstream>
+
+using namespace std;
+
+
+int print_eigen(Eigen::Matrix4d m)
+{
+    // Eigen Matrices do have rule to print them with std::cout
+    std::cout << m << std::endl;
+    return 0;
+}
+
+int test_eigen()
+{
+    
+    
+    Eigen::Matrix4d test; //4 by 4 double precision matrix initialization
+
+    // Let's make it a symmetric matrix
+    for(int i=0; i<4; i++)
+    {
+        for(int j=0; j<4; j++)
+            test(i,j) = (i+1)*(1+j);
+    }
+
+    // Print
+    print_eigen(test);
+
+    return 0;
+}
+
+
+
+