Principle of the test
================

The field studied is a :math:`[\mathrm{0,1}]\times [\mathrm{0,1}]` square

It is meshed into quadrangles in two different ways:

MA1: We cut the square in :math:`9\times 9` QUAD4

MA2: We cut the square in :math:`12\times 12` QUAD4

On mesh MA1, a thermal evolution is created by assigning to each node the temperature obtained by the formula: :math:`T=t\ast (1+2{(x-\mathrm{0,5})}^{2}+3{(y-\mathrm{0,25})}^{2})` where :math:`t,x,y` represent the value of the moment and the 2 coordinates of the nodes.

The temperature field (at time :math:`t=10`) is then projected in several ways onto the MA2 mesh.

We test the value obtained by projection onto the coordinate point :math:`(\mathrm{0,5};\mathrm{0,5})`.

We need to get the value :math:`T=\mathrm{11,875}`