avghst08072012

最优化算法之一，拟牛顿法，亦称BFGS法，用于求解极值问题，具有二次收敛性(One of the most optimization algorithms, quasi-Newton method, also known as BFGS method for solving extremum problems, with quadratic convergence)

Traffic_Sign_Recognition -circle detection

matlab code for digital signal processing

matlab的随机数发生器，可以产生各种各样的随机序列，你懂的！(the producer of random sequence)

2011年美国大学生数学建模二等奖获得者B题参考程序(2011 American Mathematical Modeling Award winner Problem B reference program)

峰值电流模式Buck变换器分岔图，以输入电压为变量。(Bifurcation diagram of peak current mode Buck converter, using input voltage as variable.)

function ret = Int2Hex(var) Prints integer array to hexadecimal string varType = class(var) cast signness away: if ( u ~= varType(1) ) varType = [ u varType] var = typecast(var,varType) end nBits = str2double(varType(5:end)) if (64 == nBits) split 64 bit case into two 32 s cuz dec2hex doesn t handle 64 bit... varType(5:end) = 32 var = typecast(var,varType) end ret = dec2hex(var) if (64 == nBits) littleEndian = all(typecast(uint32(1), uint16 )==[1 0]) first = 1 + littleEndian second = 2 - littleEndian ret = [ret(first:2:end,:),ret(second:2:end,:)] end end

运用matlab，LBP分割脸部特征，从而达到识别人物面部表情的效果(Use matlab, LBP split facial features, so as to identify the effect of facial expressions)

微粒群算法的计算程序，用来计算非线性优化问题。(a matlab PSO program for computing nonlinear optimization problem)

文件中内含成绩排名，等高线，等式求解，动画，读取图像，多项式展开，排序等众多的matlab源程序。(File contains the standings, contour, equation solving, animation, reading images, polynomial expansion, sorting, and many matlab source.)