pca

BICG算法，是Krylov子空间的迭代方法之一(The BICG algorithm is one of the Krylov subspace iteration method)

有限元法利用铁摩辛柯梁计算转轴质量刚度阻尼矩阵(Finite element method using the Timoshenko beam to calculate the stiffness and damping matrix of the shaft quality)

说明：  矩形件排样的模拟退火算法求解 适用于矩形件的排样(Rectangular pieces of nesting of simulated annealing algorithm for nesting of rectangular parts)

基于多相结构的信道化接收机，一些自适应信号处理的算法，是小学期课程设计的题目。( Channelized receiver based on multi-phase structure, Some adaptive signal processing algorithms, Is the topic of the elementary school stage curriculum design.)

矩量法实例 计算细导线的雷达散射截面，PPT资料(Instance of the method of moments to calculate the radar cross section of thin wire)

平常练习的一些程序，比较基础，包括求斐波那契数、完数等等(Some of the usual practice procedures, more infrastructure, including seeking Fibonacci numbers, number, etc. End)

说明：  矩阵计算英文版第4版，经典，经典，很不错！！！！！请下载！！！！！！(Matrix Computing English Version 4, classic, classic, very good!!!! Please download!!!!!!)

abaqus三维8节点实体单元Fortran子程序，里面有详细的注释，有单元开发兴趣的同学可以下载学习(The fortran subroutine of the 8 node solid element of ABAQUS, with detailed comments in the unit development interest students can download learning)

计算多材料单元平均应力应变,用于提取计算等效弹性模量 泊松系数(Calculate the average stress-strain of multi-material elements)

本程序可以实现在交错网格条件下的三维有限差分正演模拟(This procedure can be achieved under the conditions of the staggered grid finite difference forward modeling)