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层次分析法的VB应用软件，可以实现层次分析法的实例计算。(AHP VB)

测绘程序，计算测边网各点坐标的评查程序，值得借鉴(Mapping program to calculate the coordinates of each point measured the side-netting of assessment investigative procedures, worth learning)

Dot Matrix 5 x 7 sample progmam , hope you enjoy

计算按频率抽取的基4快速傅里叶变换算法，与基2FFT相比，基4FFT的乘法量约减少25 。(Calculating frequency taken by fast Fourier transform algorithm base 4, compared with the base 2FFT the base 4FFT multiplication about 25 less.)

湍流模型re计算流体力学软件udf 可以用于修改UDF文件(turbulence model FLUENT)

复数的四则运算完整版，包括加减乘除，阶乘，开方等。。。(The plural arithmetic full version,, including addition, subtraction, multiplication, and division factorial, prescribing, etc...)

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

三次样条曲线拟合代码，先训练，后差值，计算非常准确(Three times spline curve fitting, the first training, and after, computation is very accurate)

Floor planning and route

this source code is use to calculate resister capacitor and inductor