diff --git a/.gitignore b/.gitignore
index fddc013..97d6e7f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,106 +1,107 @@
 .DS_Store
+test*
 
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 # Installer logs
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 pip-delete-this-directory.txt
 
 # Unit test / coverage reports
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 # PyBuilder
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 # pyenv
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 # mypy
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diff --git a/docs/examples/Statics/LinearElasticity.cpp b/docs/examples/Statics/LinearElasticity.cpp
index dad4bd6..d6ead42 100644
--- a/docs/examples/Statics/LinearElasticity.cpp
+++ b/docs/examples/Statics/LinearElasticity.cpp
@@ -1,71 +1,71 @@
 #include <GooseFEM/GooseFEM.h>
 #include <GMatLinearElastic/GMatLinearElastic.h>
 
 int main()
 {
   // mesh
   // ----
 
   GooseFEM::Mesh::Quad4::Regular mesh(5,5);
 
   xt::xtensor<double,2> coor = mesh.coor();
   xt::xtensor<size_t,2> conn = mesh.conn();
   xt::xtensor<size_t,2> dofs = mesh.dofs();
   xt::xtensor<double,2> disp = xt::zeros<double>(coor.shape());
 
   xt::xtensor<size_t,1> nodesLeft   = mesh.nodesLeftEdge();
   xt::xtensor<size_t,1> nodesRight  = mesh.nodesRightEdge();
   xt::xtensor<size_t,1> nodesTop    = mesh.nodesTopEdge();
   xt::xtensor<size_t,1> nodesBottom = mesh.nodesBottomEdge();
 
   // boundary displacements
   // ----------------------
 
   xt::xtensor<size_t,1> iip = xt::empty<size_t>({2*nodesLeft.size()+2*nodesBottom.size()});
   xt::xtensor<double,1> u_p = xt::zeros<double>(iip.shape());
 
   size_t i = 0;
   for ( auto &n : nodesRight  ) { iip(i) = dofs(n,0); u_p(i) =  0.1; ++i; }
   for ( auto &n : nodesTop    ) { iip(i) = dofs(n,1); u_p(i) = -0.1; ++i; }
   for ( auto &n : nodesLeft   ) { iip(i) = dofs(n,0); u_p(i) =  0.0; ++i; }
   for ( auto &n : nodesBottom ) { iip(i) = dofs(n,1); u_p(i) =  0.0; ++i; }
 
   // element definition
   // ------------------
 
   GooseFEM::VectorPartitioned vector(conn, dofs, iip);
   GooseFEM::MatrixPartitioned K     (conn, dofs, iip);
 
   GooseFEM::Element::Quad4::QuadraturePlanar elem(vector.asElement(coor));
 
   GMatLinearElastic::Cartesian3d::Material mat(mesh.nelem(), elem.nip(), 1., 1.);
 
   // solve
   // -----
 
   // strain
   xt::xtensor<double,4> Eps = elem.symGradN_vector(vector.asElement(disp));
 
   // stress
   xt::xtensor<double,4> Sig = mat.Sig(Eps);
 
   // tangent
   xt::xtensor<double,6> C = mat.Tangent();
 
   // internal force
-  xt::xtensor<double,2> fint = vector.asNode(elem.int_gradN_dot_tensor2_dV(Sig));
+  xt::xtensor<double,2> fint = vector.assembleNode(elem.int_gradN_dot_tensor2_dV(Sig));
 
   // stiffness matrix
   K.assemble(elem.int_gradN_dot_tensor4_dot_gradNT_dV(C));
 
   // solve
   xt::xtensor<double,1> u_u = K.solve(vector.asDofs_u(fint), u_p);
 
   // assemble to nodal vector
   disp = vector.asNode(u_u, u_p);
 
   // print result
   std::cout << disp << std::endl;
 
   return 0;
 }
diff --git a/docs/examples/Statics/test b/docs/examples/Statics/test
deleted file mode 100755
index 5bb7e18..0000000
Binary files a/docs/examples/Statics/test and /dev/null differ