wavelet_fractal_compressor

一些很有用的数值计算程序：包括多种数值逼近算法的C语言程序，如龙格逼近算法，里米兹一致逼近算法等(Some very useful numerical calculation procedures: including a variety of numerical approximation algorithm for the C language program, such as the Runge approximation algorithm, where meads uniform approximation algorithm)

三维的FDTD实现，采用CPML边界，较为详细的注释(Three-dimensional FDTD using CPML border, more detailed notes)

最小二乘拟合空间直线，和单独的误差计算函数(Linear least squares fitting space, and a separate error calculation function)

说明：  最速下降法就是梯度下降法,可以用于求解最小二乘问题(线性和非线性都可以)。可以说是求解机器算法的最古老、最经典的模型，另一种常用的方法是最小二乘法。(The steepest descent method is the gradient descent method, which can be used to solve the least squares problem (both linear and non-linear). It can be said that it is the oldest and most classical model for solving machine algorithm. Another commonly used method is the least square method.)

模拟隧道开挖后受力及变形，初始地应力清零及接触面分析处理。( U6A21 u62DF u96A7 u9053 u5F00 u6316 u53D7 u53B0 u53E u53E u53F8 u53E U6790 u5904 u7406 u3002)

根据X和Y两组数据，将两组数据在X-Y平面上最小二乘法拟合出圆(According to X and Y two sets of data, the two sets of data in the X-Y plane, the least square method of fitting the circle)

比特交织编码中的迭代解映射算法简化 复杂度比原算法降低(Bit interleaved coded mapping algorithm in the iterative solution simplifies complex than the original algorithm reduces)

三维后台阶流动再附着过程的K-E湍流计算程序，采用SIMPLE算法+壁面函数(Calculation procedures of K-E turbulent flow for three-dimensional backward-facing step flow reattachment process, using SIMPLE algorithm+ wall function)

说明：  特征值分解，HouseHolder分解等(matlab Linear Algebra Package)

气液平衡数据进行NRTL参数最小二乘法拟合(VLE NRTL fitting)