使用直观的、线性回归算法实现的程序！

一个能算波兰法和自然法的计算器- Can calculate the Polish law and the natural law calculator

经典矩形问题 生成各种矩阵是竞赛时经常考的一种题目,如何用C语言或C++生成以下形式几种矩阵:-classic rectangular matrix of various problems generated when the contest is a regular test subject, how to use C or C generated several matrix form :

用C语言实现IFFT的算法，不过在程序中需要有输入信号。希望能有什么帮助。

RFID

的傅立叶变换,工程技术中，常将看成一时间信号，相应的空间，称为时间域和空域；将其傅立叶变换看成频率函数，相应的空间称为频域。称为其相角，这在物理上是有良好背景的。-The Fourier transform, engineering technology, often viewed as a time signal, the corresponding space, known as time domain and airspace its Fourier transform as a frequency function, the corresponding space is called the frequency domain. Known as its phase angle, which in physics is a good background.

旅行商问题 某售货员要到若干城市去推销商品，已知各城市之间的路程（或旅费）。他要选定一条从驻地出发，经过每个城市一遍，最后回到驻地的路线，使总的路程（或旅费）最小。 例如：给定4个城市{1，2，3，4}及其各城市之间的路程 最优路线是1,3,2,4,1， 其最短路程是25-a salesman, traveling salesman problem, a number of cities to sell commodities, the known distance between the city (or travel). He selected from a resident, after each city again, the last resident to return to the line, making the total distance (or travel) is the smallest. For example : given four cities (1,2,3,4) and the distance between the city optimal route is 1,3,2,4, 1, the shortest distance is 25

资源描述基于Gabor+pca识别人脸表情 ，很详细，用opencv实现的  对于学习pca算法的初学者很有用。

快速FFT算法的程序-FFT procedure

Ordinary and Partial Differential Equation Routines in C, C++, Fortran, Java, Maple, and MATLAB

求解非线性不动点方程组x=G(x)的非线性塞德尔迭代方法，初值x0-For solving nonlinear fixed point equation x = G (x) the nonlinear Seidel iterative method, initial value x0