实现UTM平面坐标系到经纬度的双向转换 CoordinateConversion

说明：  使用有限体积法求解naca0012流场，欧拉方程(Using finite volume method to solve NACA0012 flow field, Euler equation)

说明：  求解二维亥姆霍兹方程的fortran程序，包含网格文件。(Fortran two-dimensional Helmholtz equation solving procedures, including the grid file.)

波束域 MUSIC 算法跟经典MUSIC 算法相比，具有更小的分辨信噪比门限(Beamspace MUSIC algorithm compared to the classic MUSIC algorithm, with smaller resolution and signal to noise ratio limit)

使用C编写的复数矩阵求逆，使用高斯消去法，已经和matlab结果做过对比，无误(Written in C and the complex matrix inverse, using the Gaussian elimination method, has been done and matlab results contrast, correct)

关于粗糙集对属性进行约简，一个很好的计算工具(On rough set of attributes about Jane, a very good tool)

说明：  三次样条插值的MATLAB程序（三弯矩方程）(Cubic Spline Interpolation MATLAB (3 Moment equation))

对机械中的振动信号进行傅立叶变换，作出频谱图进行分析。(Fourier transform of the vibration signal)

用于计算谱相关函数的时域平花FFT积累算法，可改参数，改输入信号类型(calculate spectral correlation function by using time smoothing FFT Accumulation Algorithm, you can change the parameters, and the type of input signal )

优化设计算法：用powell法求解目标函数的最优解和最优值，已经验证算法的正确性，在visual c++6.0下开发(Optimization algorithm: Solving the objective function with powell optimal solution and optimal value, has verified the correctness of the algorithm, the visual c++6.0 under development)

fortran code for LINEAR_WAVE PROPAGATION by forward time forward spase method.