stak

说明：  通过三个点坐标，求出圆心坐标。C#代码，主要是算法。(Through the coordinates of three points, the coordinates of the center of the circle are obtained.)

考虑地球J2项摄动的轨道积分器，变步长，基于龙格库塔78阶，(orbital integrator considering the J2 pertubation, based on the Runge-Kutta 78 integrator, use automatic step control)

润滑理论的matlab求解程序,包括弹流和刚流润滑.(Lubrication theory matlab solving procedures, including Elastohydrodynamic lubrication and just.)

粘弹性人工边界的实现，在abaqus中快速施加粘弹性人工边界(Realization of viscoelastic artificial boundary, imposed by rapid visco-elastic artificial boundary in abaqus)

SPH 源代码，用于科研计算，是光滑粒子流体动力学-一种无网格粒子法书后的源代码(SPH source code, for scientific computing, is a smoothed particle hydrodynamics -- a source code after a meshless particle method.)

contourlet变换工具箱，附带贝叶斯阈值去噪(Toolbox contourlet transform, with Bayesian threshold denoising)

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)

这个程序是三次样条厄米特插值程序，可以用于拟合函数，做出图形(This program is a cubic spline Hermitian interpolation procedure can be used for the fitting function to make the graphics)

有限元法计算程序，运用三角单元，进行线性插值，处理平面问题。(finite element method)

计算灰色关联度，包含灰色绝对关联度、相对关联度和归一关联度(Calculate the gray relational grade, contains gray absolute degree relative correlation degree and normalized correlation degree)