说明：  MATLAB® is a high-performance language for technical computing. It integrates computation, visualization, and programming in an easy-touse environment where problems and solutions are expressed in familiar mathematical notation. MATLAB stands for matrix laboratory. MATLAB is an interactive system whose basic data element is an matrix (array) that does not require dimensioning. This allows you to solve many technical computing problems, especially those with matrix and vector formulations, in a fraction of the time it would take to write a program in a scalar non-interactive language such as C or Fortran 3 Fortran.