Fractional Fourier Transform

说明：  自适应simpson算法，数值分析考试用的(Adaptive Simpson algorithm for numerical analysis test)

用于计算参考作物蒸发蒸腾量ET0(P-M公式)(Used to calculate the reference crop evaporation transpiration ET0)

实现1到1000位的大数运算（包括加减乘除和浮点数运算），运行环境是vs2005(1-1000, large number operations (addition, subtraction and floating-point), the operating environment is vs2005)

最佳平方逼近数值分析算法程序，matalab编程运算(numerical analysis of best square approximation)

该软件主要应用是采用高斯正反算进行换带计算的。(The software application is used mainly Gaussian with positive and negative exchange balance calculation.)

说明：  用em算法估计高斯混合模型参数，matlab代码(Estimation of Gaussian mixture model parameters by EM algorithm)

《数值分析方法库 》本书选材内容丰富，包括了当代科学计算过程中涉及的大量内容：求特殊函数值、随机数、排序、最优化、快速傅里叶变换、谱分析、小波变换、统计描述和数据建模、偏微分议程数值解、若乾编码算法和任意精度计算等。本书科学性和实用性统一，不仅对每种算法进行了数学分析和比较，而且根据作者经验对算法给出了评论和建议，并在此基础上提供了用C++语言编写的实用程序。(《Numerical Recipes in C: The Art of Scientific Computing》, The product of a unique collaboration among four leading scientists in academic research and industry, Numerical Recipes is a complete text and reference book on scientific computing. In a self-contained manner it proceeds from mathematical and theoretical considerations to actual practical computer routines. With over 100 new routines bringing the total to well over 300, plus upgraded versions of the original routines, the new edition remains the most practical, comprehensive handbook of scientific computing available today.)

FFT快速傅里叶变换，用于数字信号处理，大大提高了运行速度，节省内存开销。C语言实现(FFT fast Fourier transform for digital signal processing, greatly improving the speed and save memory overhead. C language)

说明：  abaqus vumat 子程序入门 UMAT FOR ABAQUS/STANDARD INCORPORATING ELASTIC BEHAVIOUR FOR PLANE STRAIN AND AXI-SYMMETRIC ELEMENTS.(introduction to abaqus vumat subroutine)

隐式及显示技术模拟复合材料结构的固化，UMAT程序(Cure Simulation of Composite Structures Applying Implicit and Explicit FE Techniques)