random1

自己编写的振动响应计算的matlab程序，可以运行，结果正确。(dynamic response of the system using matlab。)

介绍MAPLE使用方法的书籍。网上关于maple的指导书很少，这个是不错的了。对初学者来说可以迅速上手，我当时就是因为临时需要才学的，边学边用，很快就上手了。(An introductory book of MAPLE, published in 2007. Easy to understand and use. Suitable for beginners and amateurs.)

vumat and umat file of hashin and hard

一个有限元计算的例子,初学者可以参考，简单易看懂(an example of FEm computation)

计算流体力学有限体积法程序开源代码改进版本，增加了湍流模型(An improved Edition of open source computational fluid dynamics finite volume method program, increased turbulence model)

截断奇异值分解技术是一种正则化方法，用于不适定问题的数值计算(Truncated Singular Value Decomposition is a regularizaiton method for ill-conditioned problem computation.)

用ABAQUS及其子程序解决热冲压热力耦合问题(Subroutine with ABAQUS and hot stamping coupled thermal problem solving)

说明：  CZT和FFT的C语言实现代码，能有效滤除谐波，噪声。获得信号的频率，是一种良好的频率测量算法。(CZT and FFT of the C language code, can effectively filter out harmonics and noise. Access to the signal frequency, is a good algorithm for frequency measurement.)

复数的四则运算完整版，包括加减乘除，阶乘，开方等。。。(The plural arithmetic full version,, including addition, subtraction, multiplication, and division factorial, prescribing, etc...)

有限元n维实体材料单元，仅供科研用途，拒绝商业使用(N-dimensional finite element solid material element, for scientific purposes, refusing commercial use)