UMAT_Hashin3D

matlab程序—用burg方法计算太阳黑子爆发的周期(the matlab program-the frequency of the sunspot by the method of burg)

说明：  集成了梯度下降法、牛顿法、拟牛顿法、共轭梯度法等多个最优化算法(It integrates gradient descent method, Newton method, quasi Newton method, conjugate gradient method and other optimization algorithms)

说明：  实现快速离散傅里叶变换，即FFT,很有用的程序(Fast discrete Fourier transform, namely, FFT, very useful program)

说明：  卡尔曼初始对准主程序，说明了卡尔曼滤波在初始对准里的应用(Main program of Kalman initial alignment)

说明：  自动控制原理课程设计，建立倒立摆的非线性数学模型用SIMULINK图形库实现。(The course design of the principle of automatic control and the establishment of the nonlinear mathematical model of the inverted pendulum are realized by the Simulink graphic library.)

说明：  umat公式详细介绍，我也不知道够20字了mei(the introduction of umat in abaqus)

开发环境没有可选项，fortran90,Fortran_90_and_Computational_Science-_codes(Computational Science codes by fortran90 )

burgers方程求解，采用fortran编写，有详细的说明，效果非常好(burgers equations, using fortran prepared a detailed description of the effect is very good)

计算多项流的好程序，简单好用，计算量小。可以较好的模拟二维的两项变化情况(Calculating a number of streams of the program, easy to use, small amount of calculation. Can better simulate the two-dimensional variation)

算法设计与分析之汉诺塔问题介绍与讲解 希望大家有时间看看 (Tower of Hanoi problem description and explanation of the design and analysis of algorithms hope that we have time to look at)