Finalized tutorial 701, added missing template

Former-commit-id: 63ef13a583

python/modules/py_vector.cpp

@@ -149,11 +149,11 @@ py::class_<Type> bind_eigen_2(py::module &m, const char *name,
         .def("mean", [](const Type &m) {return m.mean();})
 
         .def("sum", [](const Type &m) {return m.sum();})
-        .def("square", [](const Type &m) {return m.array().square();})
         .def("prod", [](const Type &m) {return m.prod();})
         .def("trace", [](const Type &m) {return m.trace();})
         .def("norm", [](const Type &m) {return m.norm();})
         .def("squaredNorm", [](const Type &m) {return m.squaredNorm();})
+        .def("squaredMean", [](const Type &m) {return m.array().square().mean();})
 
         .def("minCoeff", [](const Type &m) {return m.minCoeff();} )
         .def("maxCoeff", [](const Type &m) {return m.maxCoeff();} )