Electronic devices that exploit the spin of electrons as well as their charge are poised to overcome a major hurdle that could signal the beginning of an electronics revolution. Spintronics, at the interface between magnetism and electroni

作为当今全世界最流行的第四代计算机语言—MATLAB 系统，由于它在航空航天、生 物医学、物理学、通信、DSP、科学计算、网络控制、自动控制、图形图象处理、生命科 学、系统建模仿真、财务、电子商务、数据分析等不同领域的广泛应用以及它自身所具备 的高度工具化、平台性及优秀的数据可视化功能而具有独特的优势，目前，MATLAB 系统 的开发和利用已极大地被自然科学、管理科学、工程技术以及教育界所关注与重视-As of today the world' s most popular

MathCAD - a powerful and at the same time simple universal medium for solving problems in various fields of science and technology, finance and economics, physics and astronomy, mathematics and statistics ... MathCAD is the only system in which a des