Epsilon : 3e-13
Interpolation of array : Array<double> [
 + id             : const_val
 + size           : 13
 + nb_component   : 2
 + allocated size : 13
 + memory size    : 208.00Byte
 + values         : {{1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {0, 0}, {0, 0}, {0, 0}, {0, 0}}
]

Gives on quads : Array<double> [
 + id             : val_on_quad
 + size           : 16
 + nb_component   : 2
 + allocated size : 16
 + memory size    : 256.00Byte
 + 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}}
]

Interpolations of node coordinates : Array<double> [
 + id             : mesh:coordinates
 + size           : 13
 + nb_component   : 2
 + allocated size : 2000
 + memory size    : 31.25KiByte
 + values         : {{-0.5, -0.5}, {0, -0.5}, {0.5, -0.5}, {-0.5, 0.5}, {0, 0.5}, {0.5, 0.5}, {-0.5, 0}, {0, 0}, {0.5, 0}, {-0.353553, 0.146447}, {0.353553, 0.146447}, {-0.353553, -0.146447}, {0.353553, -0.146447}}
]

Gives : Array<double> [
 + id             : coord_on_quad
 + size           : 16
 + nb_component   : 2
 + allocated size : 16
 + memory size    : 256.00Byte
 + values         : {{-0.284518, -0.382149}, {-0.451184, -0.215482}, {-0.284518, -0.0488155}, {-0.117851, -0.215482}, {-0.117851, 0.215482}, {-0.284518, 0.0488155}, {-0.451184, 0.215482}, {-0.284518, 0.382149}, {0.451184, -0.215482}, {0.284518, -0.382149}, {0.117851, -0.215482}, {0.284518, -0.0488155}, {0.284518, 0.0488155}, {0.117851, 0.215482}, {0.284518, 0.382149}, {0.451184, 0.215482}}
]

Epsilon : 3e-13
Interpolation of array : Array<double> [
 + id             : const_val
 + size           : 19
 + nb_component   : 2
 + allocated size : 19
 + memory size    : 304.00Byte
 + values         : {{1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {1, 2}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}, {0, 0}}
]

Gives on quads : Array<double> [
 + id             : val_on_quad
 + size           : 40
 + nb_component   : 2
 + allocated size : 40
 + memory size    : 640.00Byte
 + 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}, {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}}
]

Interpolations of node coordinates : Array<double> [
 + id             : mesh:coordinates
 + size           : 19
 + nb_component   : 2
 + allocated size : 2000
 + memory size    : 31.25KiByte
 + values         : {{-0.5, -0.5}, {0, -0.5}, {0.5, -0.5}, {-0.5, 0.5}, {0, 0.5}, {0.5, 0.5}, {-0.5, 0}, {0, 0}, {0.5, 0}, {0.25, -0.5}, {0.25, -0.25}, {0.25, 0}, {0.25, 0.25}, {0.25, 0.5}, {-0.25, -0.5}, {-0.25, -0.25}, {-0.25, 0}, {-0.25, 0.25}, {-0.25, 0.5}}
]

Gives : Array<double> [
 + id             : coord_on_quad
 + size           : 40
 + nb_component   : 2
 + allocated size : 40
 + memory size    : 640.00Byte
 + values         : {{-0.166667, -0.416667}, {-0.302831, -0.261165}, {-0.447169, -0.147329}, {-0.302831, -0.436004}, {-0.447169, -0.405502}, {-0.333333, -0.0833333}, {-0.197169, -0.238835}, {-0.0528312, -0.352671}, {-0.197169, -0.0639958}, {-0.0528312, -0.0944979}, {-0.166667, 0.0833333}, {-0.302831, 0.238835}, {-0.447169, 0.352671}, {-0.302831, 0.0639958}, {-0.447169, 0.0944979}, {-0.333333, 0.416667}, {-0.197169, 0.261165}, {-0.0528312, 0.147329}, {-0.197169, 0.436004}, {-0.0528312, 0.405502}, {0.333333, -0.416667}, {0.197169, -0.261165}, {0.0528312, -0.147329}, {0.197169, -0.436004}, {0.0528312, -0.405502}, {0.166667, -0.0833333}, {0.302831, -0.238835}, {0.447169, -0.352671}, {0.302831, -0.0639958}, {0.447169, -0.0944979}, {0.333333, 0.0833333}, {0.197169, 0.238835}, {0.0528312, 0.352671}, {0.197169, 0.0639958}, {0.0528312, 0.0944979}, {0.166667, 0.416667}, {0.302831, 0.261165}, {0.447169, 0.147329}, {0.302831, 0.436004}, {0.447169, 0.405502}}
]