bisect

使用五点差分格式计算一个微分方程在边值问题上的解(The use of a five-point difference scheme for the calculation of a differential equation in the solution of boundary value problems)

FFT with fix point 2*N

经典R-K法，通过它可以计算一些简单的常微分方程的数值解(Classical RK method, which can be calculated by simple numerical solution of ordinary differential equations)

罚函数法 它将有约束最优化问题转化为求解无约束最优化问题: 其中M为足够大的正数, 起"惩罚"作用, 称之为罚因子, F(x, M )称为罚函数.(hunhefahanshufa)

fft 利用DSP Builder 在MATLAB下产生的模型(DSP Builder fft using the model generated in MATLAB)

QR方法是一种变换方法，是计算一般矩阵(中小型矩阵)全部特征值问题的最有效方法之一.(QR method is a transformation method is the calculation of the general matrix (small and medium-sized matrix) eigenvalue problem for all of the most effective methods.)

提供函数能进行1维2维的FFT，输入输出的序列长度应为2的整数次方倍(Provides functions can be one-dimensional two-dimensional FFT, sequence length input and output should be an integer power of 2 times)

说明：  可以进行平面拟合，基于matlab语言，简单易懂(It can be used for plane fitting. It is simple and easy to understand based on MATLAB language.)

用matlab来模拟温度场，准确度高，具有参考价值。(yong matlab lai moni wenduchang ,zhuquedugao ,juou cankaojiazhi .)

最小二乘法拟合曲线C++代码，任意的M个数据，任意的次数N(N不易太高)。输出拟合曲线的表达式(Least Squre For ...)