3970971SPH-for-couette

说明：  对音频信号进行处理。实现变速不变调。变调不变速。男声变女声。内有实例音频文件(The audio signal processing. Adjusted to achieve the same speed. Tone does not shift. Male Female change. There are instances of audio files)

有较好的参考价值，外文资料里面的源代码，基于小波变换的数字水印算法matlab代码。( There are good reference value, Foreign materials inside the source code, Based on wavelet transform digital watermarking algorithm matlab code.)

说明：  9跨每跨35米桥梁响应的车桥耦合程序，使用Fortran编写(9 of 35 meters span bridge across every bridge coupled response procedures, the use of Fortran written)

基于D2Q9模型的LBM程序，用于计算方腔驱动流，对应何亚玲《格子Boltzmann方法的理论及应用》一书的源码(LBM D2Q9 model-based program used to calculate the square cavity driven flow, which corresponds He Yaling " Lattice Boltzmann Method Theory and Applications," a source book)

用传输矩阵法计算一维光子晶体的带结构的程序,用matlab所编,文件解压后,程序写在word文档中,并附有在matlab下画的图,本人感觉非常有用(use of the transfer matrix method one-dimensional photonic crystal with the structure of the program, prepared by Matlab. unpacks the files, procedures written in word document, together with the painting under Matlab plans, I feel very useful)

共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数。(Conjugate gradient method (Conjugate Gradient) is between the steepest descent method between the method and Newton' s method, it takes only a first derivative information, but to overcome the steepest descent method convergence slow shortcomings, but also to avoid the Newton method needs to be stored Hesse and disadvantages of computing inverse matrix and the conjugate gradient method is not only one of the most useful methods to solve large linear equations, solution of large-scale nonlinear optimization is one of the most effective algorithm. In various optimization algorithm, conjugate gradient method is a very important one. The advantage is that a small amount of memory required, with step convergence, high stability, and does not require any external parameters.)

用于最小二乘支持向量机的名为"留一法",可用于支持向量机超参数的确定.(for least squares support vector machine called "a stay", could be used to support vector machine-determined parameters.)

用无网格法计算VAN DE POL 振子(calculate van de pol oscillator by using meshless method)

说明：  用于石油地震资料数字处理，包括 地震偏移（二维或三维）、滤波程序、重采样、具有很广的应用前景，还可以移植到其他的工程领域。(oil for digital processing seismic data, including seismic migration (2D or 3D), filtering procedures, re-sampling, have a very broad application prospects, but also can be transferred to other engineering fields.)

说明：  Matlab编写的最速下降法算法程序，美国一本权威数值计算方面的书上的源程序。(Matlab prepared by the steepest descent algorithm, a numerical calculation authoritative book on the source.)