don't enclose eigen in a namespace. prefixing is the way to go.

For example Qt uses a prefix and no namespace (except for a few things)

1 files changed, 0 insertions, 1 deletions

diff --git a/doc/tutorial.cpp b/doc/tutorial.cpp
index 18a1ced55..2eec7be3e 100644
--- a/doc/tutorial.cpp
+++ b/doc/tutorial.cpp
@@ -1,7 +1,6 @@
 #include "../src/All"
 
 using namespace std;
-using namespace Eigen;
 
 int main(int, char **)
 {