VUMAT_UMAT-interface

大气参数计算，含密度、湿度、粘性、热导率等(-Air parameters, density, humidity, viscosity, thermal conductivity)

频谱分析,用于对等时间间距的序列进行频谱分析 很好的(Spectrum analysis for equivalent time interval sequence spectrum analysis is very good)

这是SIR微分方程模型对初值问题的求解和作图(This is the SIR model differential equations to solve the problem of initial value and mapping)

序列二次规划(SQP)方法被认为是解决非线性约束优化最有效的方法之一，传统的SQP算法每一步迭代都要求解QP子问题。 　　(Sequential two times programming (SQP) is considered to be one of the most effective ways to solve nonlinear constrained optimization. The traditional SQP algorithm requires QP iteration for every iteration.)

matlab求解变系数双曲方程，使用迎风格式(matlab solves the hypolic equation using upwind method)

已知日期，计算出星期几的程序.以过测试。计算正确。请放心使用。(Caculate Weekday)

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

roe格式对多种不同初始条件黎曼问题的计算。(the document solve the riemann problem with roe method.)

超级好用的书，面试必备，包括常用的算法介绍，面试题目等等(Super easy to book, interview essential, including the commonly used algorithm is introduced, interview questions, etc.)

计算任意两个等维矩阵之间对应坐标点的距离(Calculate the distance between the corresponding coordinate points of any two equal dimensional matrices.)