Epsilon : 3e-13
Interpolation of array : Array<double> [
 + id             : const_val
 + size           : 21
 + nb_component   : 2
 + allocated size : 21
 + memory size    : 336.00Byte
 + 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}}
]

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           : 21
 + nb_component   : 2
 + allocated size : 2000
 + memory size    : 31.25KiByte
 + values         : {{0, 0}, {1, 0}, {1, 1}, {0, 1}, {0.5, 0}, {0.25, 0}, {0.75, 0}, {1, 0.5}, {1, 0.25}, {1, 0.75}, {0.5, 1}, {0.75, 1}, {0.25, 1}, {0, 0.5}, {0, 0.75}, {0, 0.25}, {0.5, 0.5}, {0.5, 0.75}, {0.75, 0.5}, {0.5, 0.25}, {0.25, 0.5}}
]

Gives : Array<double> [
 + id             : coord_on_quad
 + size           : 16
 + nb_component   : 2
 + allocated size : 16
 + memory size    : 256.00Byte
 + values         : {{0.894338, 0.894338}, {0.605662, 0.894338}, {0.894338, 0.605662}, {0.605662, 0.605662}, {0.894338, 0.394338}, {0.605662, 0.394338}, {0.894338, 0.105662}, {0.605662, 0.105662}, {0.394338, 0.894338}, {0.105662, 0.894338}, {0.394338, 0.605662}, {0.105662, 0.605662}, {0.394338, 0.394338}, {0.105662, 0.394338}, {0.394338, 0.105662}, {0.105662, 0.105662}}
]