核磁共振成像DTI数据的FA计算方法，可以实现FA的计算。-MRI DTI data the FA calculation method can achieve the calculation of the FA.

可以计算3d核磁共振成像的DTI数据的张量的轨迹，便于进行神经纤维跟踪。-The tensor trajectory can be computed 3d magnetic resonance imaging DTI data, to facilitate the tracking of nerve fibers.

改代码实现了3d核磁共振成像数据中DTI数据的弥散张量场的计算，适合初学者学习。-3d MRI data DTI data calculation of the diffusion tensor field to change the code, suitable for beginners to learn.