TE_PHC

Fortran算法程序集，徐士良，第二版，包括源码和pdf。(The Fortran algorithm assemblies, XU Shi-liang, second edition, including source code and pdf.)

牛人Matthew Pais，精通扩展有限元、abaqus、matlab,此博士论文详尽描述了XFEM的理论与编程思想。 (Professor Matthew Pais who is proficient at Extended Finite Element、abaqus, matlab。This paper describes the the XFEM theory and matlab programm ideas in detail.Now it is open to you ,my friends!)

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)

螺旋桨唱音信号建模，FFT变换后有明显的谐波(The propeller singing sound signal is modeled, and FFT transformation has obvious harmonic )

主要用于三次样条拟合，对离散点进行拟合插值，(Three order spline fitting)

fluent多相流DPM模型中使用用户自定义函数对颗粒进行统计(DPM fluent multiphase flow model using user-defined functions for particle statistics)

用于计算参考作物蒸发蒸腾量ET0(P-M公式)(Used to calculate the reference crop evaporation transpiration ET0)

《ABAQUS在岩土工程中的应用》-费康中二次开发的梁单元应用(" ABAQUS in geotechnical engineering" - charges the secondary development of health in the application of beam elements)

说明：  在科学与工程计算中，经常遇到求解非线性方程组的问题；非线性方程组在收敛速度及收敛性比线性方程组要差，特别对于非凸的非线性方程组，其求解更是困难。下面简要介绍非线性方程组的三种解法——牛顿法、拟牛顿法、同伦算法，分析三种解法的适用性，并附Matlab原程序。(Scientific and engineering computing, often encounter the problem of solving nonlinear equations speed of convergence of nonlinear equations and linear equations worse than convergence, especially for non-convex nonlinear equations, which is even more difficult to solve . The following briefly describes three solutions to nonlinear equations- Newton method, quasi-Newton method, homotopy method, the applicability of the three solutions, along with Matlab original program.)

Ridge Regression RR 岭回归估计，是非常有用的非线性时间序列算法，在局部多项式预测中非常有用。(Ridge Regression RR ridge regression estimates, it is useful to nonlinear time series algorithms, in Local Polynomial prediction in very useful.)