fft

说明：  实现基2时域频域抽取fft算法，可输出运算后所得复序列的模值序列，并可记录显示计算所用时间(Achieve base 2 fft algorithm frequency domain extraction can be obtained after computing the output sequence of modulus of complex sequences can be used in the calculation time, records show)

焊接模拟，fluent，电弧udf，钨极氩弧焊，源项(Welding simulation, fluent, arc udf, TIG welding, the source term)

大量数值分析常见算法的源程序 如解方程组 插值等 可以用浏览器打开的HTM文件，内部使用C开发(A large number of numerical analysis algorithms common source such as the solution of equations interpolation can be used to open the browser)

膜渗透 FUENT UDF 气液两相流 (Gas-liquid two-phase flow membrane permeation FUENT UDF)

用编译的科学计算器，代码详细，清楚。设计简单。(Scientific Calculator with compiled code in detail, clearly.)

艾特金迭代法求解线性方程组源代码，在程序中修改方程就可以(Aitkin iterative method for solving linear equations source code, the equation can be modified in the program)

灰色关联度分析是基于灰色系统的灰色过程, 进行因素间时间序列的比较来确定哪些是影响大的主导因素, 是一种动态过程的研究。(Grey Relational Analysis is based on gray gray process, the comparison of the time series between the factors to determine what affect the the big dominant factor, is a dynamic process.)

关于FFT和bode图的相关分析和再saber中的实现程序。。关于FFT和bode图的相关分析和再saber中的实现程序。。关于FFT和bode图的相关分析和再saber中的实现程序。。(On the FFT and Bode diagram of the relevant analysis and re saber in the implementation process.)

说明：  LM算法的c语言实现 拟合的函数为gauss函数(Levenberg-Marquardt Method)

arithemetic code on visual c++