beam_displacement

共扼梯度法的Matlab源程序，寻找非线性或线性方程的极值(conjugate gradient method of Matlab source to find nonlinear equations or linear Extreme)

Orthogonal Polynomials Approximation 数值分析，计算正交基多项式的系数 (Given a function f and a set of m >0 distinct points . You are supposed to write a function to approximate f by an orthogonal polynomial using the exact function values at the given m points with a weight assigned to each point . The total error must be no larger than a given tolerance. Format of function int OPA( double (*f)(double t), int m, double x[], double w[], double c[], double*eps ) where the function pointer double (*f)(double t) defines the function f int m is the number of points double x[] contains points double w[] contains the values of a weight function at the given points x[] double c[] contains the coefficients of the approximation polynomial double*eps is passed into the function as the tolerance for the error, and is supposed to be returned as the value of error. The function OPA is supposed to return the degree of the approximation polynomial. Note: a constant Max_n is defined so that if the total error is still not small enough when n = Ma)

fortran四阶龙格库塔法 计算程序自己编程(fortran fourth-order Runge-Kutta method)

CS算法OMP该进算法，对傅里叶与 的信号进行稀疏采样(Compressive Sensing OMP)

这些代码可以用于产生一系列随机数，可以根据需要使用。(These codes can be used to generate a series of random numbers may be used as needed.)

面元法程序，用于计算飞行器气动力、气动力矩系数。(panel code for aero calculation.)

二维泊松方程的定解问题：用5点菱形异步迭代格式求解泊松方程，h=5/4 ,误差s=1e-6 (Differential method for Poisson equation)

最优化的bfgs算法，是采用matlab编程(BFGS optimization algorithm, using matlab programming)

this source code is use to calculate resister capacitor and inductor

计算数码照片植被覆盖度。包括照片裁剪，RGB2HSL和计算(compute the vegetaion cover of digital image.)