FEMBasis contains interpolation routines for finite element function spaces. Given ansatz and coordinates of domain, shape functions are calculated symbolically in a very general way to get efficient code. Shape functions can also be given directly and in that case partial derivatives are calculated automatically.
Coverage increased (+0.2%) to 97.211% when pulling 5a789c8685b9434e9c743582e2bf616f82a1da93 on fix/math into d54f5982323a073f2670c6e3bd8337d0a8368ba1 on master.
Determinant of Jacobian / size factor was miscalculated if Jacobian is not square, i.e. curve / manifold. Fixed.