Epsilon : 1e-12
FEM [
 + id                : my_fem
 + element dimension : 2
 + mesh [
  Mesh [
   + id                : mesh
   + spatial dimension : 2
   + nodes [
    Vector<double> [
     + id             : mesh:coordinates
     + size           : 9
     + nb_component   : 2
     + allocated size : 2000
     + memory size    : 31kB
     + values         : {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0.5, 0}, {1, 0.5}, {0.5, 1}, {0, 0.5}, {0.5, 0.5}}
    ]
   ]
   + connectivities [
    ByElementType<akantu::Vector<unsigned int, true>*> [
        (not_ghost:segment_2) [
       Vector<unsigned int> [
        + id             : mesh:connectivities:segment_2
        + size           : 8
        + nb_component   : 2
        + allocated size : 2000
        + memory size    : 16kB
        + values         : {{0, 4}, {4, 1}, {1, 5}, {5, 2}, {2, 6}, {6, 3}, {3, 7}, {7, 0}}
       ]
        (not_ghost:quadrangle_4) [
       Vector<unsigned int> [
        + id             : mesh:connectivities:quadrangle_4
        + size           : 4
        + nb_component   : 4
        + allocated size : 2000
        + memory size    : 31kB
        + values         : {{2, 6, 8, 5}, {5, 8, 4, 1}, {6, 3, 7, 8}, {8, 7, 0, 4}}
       ]
    ]
  ]
 ]
 + mesh [
  Mesh [
   + id                : mesh
   + spatial dimension : 2
   + nodes [
    Vector<double> [
     + id             : mesh:coordinates
     + size           : 9
     + nb_component   : 2
     + allocated size : 2000
     + memory size    : 31kB
     + values         : {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0.5, 0}, {1, 0.5}, {0.5, 1}, {0, 0.5}, {0.5, 0.5}}
    ]
   ]
   + connectivities [
    ByElementType<akantu::Vector<unsigned int, true>*> [
        (not_ghost:segment_2) [
       Vector<unsigned int> [
        + id             : mesh:connectivities:segment_2
        + size           : 8
        + nb_component   : 2
        + allocated size : 2000
        + memory size    : 16kB
        + values         : {{0, 4}, {4, 1}, {1, 5}, {5, 2}, {2, 6}, {6, 3}, {3, 7}, {7, 0}}
       ]
        (not_ghost:quadrangle_4) [
       Vector<unsigned int> [
        + id             : mesh:connectivities:quadrangle_4
        + size           : 4
        + nb_component   : 4
        + allocated size : 2000
        + memory size    : 31kB
        + values         : {{2, 6, 8, 5}, {5, 8, 4, 1}, {6, 3, 7, 8}, {8, 7, 0, 4}}
       ]
    ]
  ]
 ]
]

StaticMemory [
 + nb memories : 1
 Memory [
  + memory id   : 0
  + nb vectors  : 7
  Vector<unsigned int> [
   + id             : mesh:connectivities:quadrangle_4
   + size           : 4
   + nb_component   : 4
   + allocated size : 2000
   + memory size    : 31kB
   + values         : {{2, 6, 8, 5}, {5, 8, 4, 1}, {6, 3, 7, 8}, {8, 7, 0, 4}}
  ]
  Vector<unsigned int> [
   + id             : mesh:connectivities:segment_2
   + size           : 8
   + nb_component   : 2
   + allocated size : 2000
   + memory size    : 16kB
   + values         : {{0, 4}, {4, 1}, {1, 5}, {5, 2}, {2, 6}, {6, 3}, {3, 7}, {7, 0}}
  ]
  Vector<double> [
   + id             : mesh:coordinates
   + size           : 9
   + nb_component   : 2
   + allocated size : 2000
   + memory size    : 31kB
   + values         : {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0.5, 0}, {1, 0.5}, {0.5, 1}, {0, 0.5}, {0.5, 0.5}}
  ]
  Vector<double> [
   + id             : my_fem:jacobians:quadrangle_4
   + size           : 16
   + nb_component   : 1
   + allocated size : 16
   + memory size    : 0.12kB
   + values         : {{0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}, {0.0625}}
  ]
  Vector<double> [
   + id             : my_fem:quadrature_points:quadrangle_4
   + size           : 4
   + nb_component   : 2
   + allocated size : 2000
   + memory size    : 31kB
   + values         : {{-0.57735, -0.57735}, {0.57735, -0.57735}, {0.57735, 0.57735}, {-0.57735, 0.57735}}
  ]
  Vector<double> [
   + id             : my_fem:shapes:quadrangle_4
   + size           : 16
   + nb_component   : 4
   + allocated size : 16
   + memory size    : 0.5kB
   + values         : {{0.622008, 0.166667, 0.0446582, 0.166667}, {0.166667, 0.622008, 0.166667, 0.0446582}, {0.0446582, 0.166667, 0.622008, 0.166667}, {0.166667, 0.0446582, 0.166667, 0.622008}, {0.622008, 0.166667, 0.0446582, 0.166667}, {0.166667, 0.622008, 0.166667, 0.0446582}, {0.0446582, 0.166667, 0.622008, 0.166667}, {0.166667, 0.0446582, 0.166667, 0.622008}, {0.622008, 0.166667, 0.0446582, 0.166667}, {0.166667, 0.622008, 0.166667, 0.0446582}, {0.0446582, 0.166667, 0.622008, 0.166667}, {0.166667, 0.0446582, 0.166667, 0.622008}, {0.622008, 0.166667, 0.0446582, 0.166667}, {0.166667, 0.622008, 0.166667, 0.0446582}, {0.0446582, 0.166667, 0.622008, 0.166667}, {0.166667, 0.0446582, 0.166667, 0.622008}}
  ]
  Vector<double> [
   + id             : my_fem:shapes_derivatives:quadrangle_4
   + size           : 16
   + nb_component   : 8
   + allocated size : 16
   + memory size    : 1kB
   + values         : {{1.57735, 1.57735, -1.57735, 0.42265, -0.42265, -0.42265, 0.42265, -1.57735}, {1.57735, 0.42265, -1.57735, 1.57735, -0.42265, -1.57735, 0.42265, -0.42265}, {0.42265, 0.42265, -0.42265, 1.57735, -1.57735, -1.57735, 1.57735, -0.42265}, {0.42265, 1.57735, -0.42265, 0.42265, -1.57735, -0.42265, 1.57735, -1.57735}, {1.57735, 1.57735, -1.57735, 0.42265, -0.42265, -0.42265, 0.42265, -1.57735}, {1.57735, 0.42265, -1.57735, 1.57735, -0.42265, -1.57735, 0.42265, -0.42265}, {0.42265, 0.42265, -0.42265, 1.57735, -1.57735, -1.57735, 1.57735, -0.42265}, {0.42265, 1.57735, -0.42265, 0.42265, -1.57735, -0.42265, 1.57735, -1.57735}, {1.57735, 1.57735, -1.57735, 0.42265, -0.42265, -0.42265, 0.42265, -1.57735}, {1.57735, 0.42265, -1.57735, 1.57735, -0.42265, -1.57735, 0.42265, -0.42265}, {0.42265, 0.42265, -0.42265, 1.57735, -1.57735, -1.57735, 1.57735, -0.42265}, {0.42265, 1.57735, -0.42265, 0.42265, -1.57735, -0.42265, 1.57735, -1.57735}, {1.57735, 1.57735, -1.57735, 0.42265, -0.42265, -0.42265, 0.42265, -1.57735}, {1.57735, 0.42265, -1.57735, 1.57735, -0.42265, -1.57735, 0.42265, -0.42265}, {0.42265, 0.42265, -0.42265, 1.57735, -1.57735, -1.57735, 1.57735, -0.42265}, {0.42265, 1.57735, -0.42265, 0.42265, -1.57735, -0.42265, 1.57735, -1.57735}}
  ]
  + total size  : 1.1e+02kB
 ]
 + total size  : 1.1e+02kB
]

Vector<double> [
 + id             : grad_on_quad
 + size           : 16
 + nb_component   : 4
 + allocated size : 16
 + memory size    : 0.5kB
 + values         : {{13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}, {13, 23, 11, 7}}
]