dec_to_dianjingdufudian

安德森/计算流体力学/fortran源代码(第九章esimple算法）(Anderson/Computational Fluid Dynamics/fortran source code (Chapter esimple algorithm))

C语言实现大数的加法减法以及乘法,水平限于仅仅大学生水平学习使用。(Use C language to achieve that addition, subtraction, and multiplication of a big intger.)

有限元二维静力计算程序，采用四节点线性单元，可以显示变形和应力云图。(Finite element analysis program for 2D problems)

基于FLUENT软件的一些常用UDF实例，比较有帮助(udf example)

程序包中含有Lagrange插值、Newton插值、Hermite插值、jacobi迭代、gauss迭代、 超松弛迭代、cholesky分解(Package contains Lagrange interpolation, Newton interpolation, Hermite interpolation, jacobi iteration, gauss iteration, ultra-relaxation iteration, cholesky decomposition)

说明：  FLUENT中离散相粒子追踪设置及相关计算，设计用户自定义相关内容(Discrete phase particle tracking in FLUENT)

读取zygo干涉仪中的dat格式数据，并转化为矩阵格式(Reads the dat format data in the Zygo interferometer and transforms it into a matrix format.)

for counting a bunch of solar cell

此函数通过两点的大地经纬度（Ja,Wa）和（Jb,Wb）计算两点间距离 Dis (this function through the 2:00 and Geodesy (Ja, Wa) and ( `, mg) calculated the distance between two points Dis)

说明：  LDL分解。作为矩阵方程数值解法最基础的矩阵分解算法，LDL算法可以高效分解对称矩阵。(LDL decomposition. Numerical Solution of matrix equation as the most basic matrix factorization algorithm, LDL decomposition algorithm can be efficient symmetric matrix.)