计算地球表面任意两点之间的大圆距离

说明：  用fortran 70实现数值积分，并实例计算了三个函数，导出了积分值和误差(The numerical integration is realized by FORTRAN 70, and three functions are calculated with examples. The integral values and errors are derived.)

对线性平流方程的时间和空间的前差格式、中央差分格式、后差格式(Difference of weather data )

This program can be used to evaluate stress strain response of shape memory alloys at constant stress and with constant material functions based on the Brinson model.

计算材料学中用相场法模拟合金凝固相变的程序(Computational Materials Science using phase-field simulation of solidification phase change process)

计算流体力学，HLL格式的一个算例，可以直接计算，适合初学者，易懂，每步有说明。(The calculation of an example of fluid dynamics, HLL format, can be calculated directly, suitable for beginners, easy to understand each step is described.)

建立正确的双馈风机模型, 正确模拟风机的端口特性 是进行风机并网运行特性(Establish the correct model of doubly-fed fan, correctly simulate the characteristics of port of the fan Is to conduct parallel operation characteristics of fan)

Calculation of the Airy Equation, written in Fortran Programming Language

线性相关 求逐月异常序列x(n,12)和y(n,12)(n是年)相同月份之间的滞后超前nt年的相关系数rt(-nt:nt,12)，其中nt最大的滞后或超前时间（单位：年）。 (Linearly related to demand monthly abnormal sequence x (n, 12) and y (n, 12) (n is the year) ahead of the same month lag between the years of the correlation coefficient nt rt (-nt: nt, 12), in which nt the largest lag or lead time (unit: years).)

说明：  编写UMAT子程序的介绍，以及黄永刚晶体塑性子程序的帮助文档(Introduction to the preparation of UMAT subroutines, as well as huang yonggang crystal plasticity documentation)

轴承热弹流计算程序，很好用。可以计算高端轴承。(thermal、elastic DEFORM and fulid model，solving reynold eqn)