Epsilon : 3e-13
Val on quads : Array<double> [
 + id             : val_on_quad
 + size           : 20
 + nb_component   : 2
 + allocated size : 20
 + memory size    : 320.00Byte
 + values         : {{1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}}
]

Integral on elements : Array<double> [
 + id             : int_val_on_elem
 + size           : 10
 + nb_component   : 2
 + allocated size : 10
 + memory size    : 160.00Byte
 + values         : {{0.1, 0.2}, {0.1, 0.2}, {0.1, 0.2}, {0.1, 0.2}, {0.1, 0.2}, {0.1, 0.2}, {0.1, 0.2}, {0.1, 0.2}, {0.1, 0.2}, {0.1, 0.2}}
]

integral on the mesh of 1 is 1 and of 2 is 2