add the calculation of the air the basis
Check the aspect ratio of the triangle

When we are using the approximation that the value over a triangle is
constante, this is important to avoid big calculation errors
Update the way I hangle parallel computing

Check if we have a license and if the computer has more than 2 CPU
Add a new optional parameter

it control the scaling of the laplacian. Typically use to enforce
circulary chaped winding for flat coils
Clarify the variables
Clean/small optimization of the sorting
clean / optimize

Add comments
Correct a bug
New function to rotate and translate a whole mesh

Rotate in 3D a mesh and translate it
Remove the hard coded relation between n and eta