求解非线性方程组的NewRaphson方法

啁啾脉冲放大中的多通放大进行数值计算，并计算其横截面光强分布。可以用于进一步计算和确定系统参数(Chirped pulse amplification of multiple amplification through numerical calculation, and calculates the cross-sectional intensity distribution. And can be used in further calculations to determine the system parameters. Ti:saphirre amplification.multipass)

几个kalman滤波的例程 适合初学者使用 并有优化建议(Several kalman filter routines suitable for beginners to use and has optimization tips)

FLUENT udf 更改S-A 湍流模型源项的程序(modify turbulence model S-A)

最新版的oofem 可以自己加入一些材料模型 版本更新速度也算快(latest version of oofem )

从旋转矩阵到四元数的转换，matlab代码。(From the rotation matrix to quaternion conversion, matlab code.)

贤哥的矩阵分析与应用习题解答，答案在手，前途永久。(Shane matrix analysis and application, the answer is in hand, the future permanent.)

说明：  多维随机数的生成方法，一维随机数生成方法，高维随机数的生成方法(Generation methods of multidimensional random number, one-dimensional random number and high-dimensional random number)

由Music算法估计线阵波达方向，搜索频谱波峰。(Estimation of linear array DOA by Music algorithm, searching spectral peak.)

本程序集对地球物理场做多种处理 如：2阶及4阶导数，位场转换，不规则密度体重力场计算，竖直圆柱体重磁场计算，用泰勒多项式及最小平方2乘的剩余异常计算，（主要适用于地磁场以及重力场的转换）(FUNCTION : THIS ROUTINE IS USED TO CALCULATE GRAVITY FOR VARIABLE DENSITY OF 2D BIVARIATE TRAPEZOID BODY Function : This program calculate derivation of order 2 and order 4 uesd in Geophysical Field（magmagnetic，gravity field） FUNCTION : THIS ROUTINE IS USED TO CALCULATE GRAVITY FOR VARIABLE DENSITY OF 2D BIVARIATE TRAPEZOID BODY Purpose: Continuation of potential fields (upward and downward continuation ) Function: This program will calculate residual anomaly,)

主要功能是进行高斯正算，高斯反算及透视方位投影的显示。(Main function is to be considered are Gaussian, inverse Gaussian and the perspective projection display position.)