Jacobi

根据输入的长宽，计算Rectangle面积周长等功能，并画出在txt文件中(Rectangle Create a class Rectangle with attributes length and width, each of which defaults to 1 a. Provide member functions that calculate the perimeter and the area of the rectangle. b. Also provide set and get functions for the length and width attributes. The set functions should verify that length and width are each integer numbers larger than 0 and less than 20. c. Write draw function to display the Rectangle: in Assignment1. ) d. Write a driver program to test class Rectangle.)

用于计算大物实验中常用的平均值和不确定度。(a simple tool to calculate average of input values.)

进行了简支梁荷载作用下的变形计算，将梁分成了40个单元，分别用Euler Bernoulli和Timoshenko 梁进行了对比计算(Was calculated deformation under loads simply supported beam, the beam is divided into 40 units, respectively Euler Bernoulli and Timoshenko beam compared calculated)

二维Euler方程的Jameson求解方法(Jameson solution of two-dimensional Euler equations)

说明：  实现了平方根容积卡尔曼滤波，十分好用，效果很好(This codes ultilize the srckf to filter something)

FFT/IFFT 变换程序----------------(FFT/IFFT transformation process----------------)

converts binary sequence to decimal sequence

该程序用来对多种物质混合物吸收光谱数据进行分析，拟合出光谱曲线并且得到其各个峰值位置所在。(The program is used for a variety of mixtures of substances absorption spectral data analysis, curve fitting, and by their spectral location of each peak.)

这是用于求解精确求解zoeppritz方程的程序，可用于AVO反演，合成地震记录等(This function computes the particle displacement reflection and transmission coefficients (the relative displacement amplitudes) for a solid-solid interface, a liquid-solid interface, a solid-liquid interface, and a liquid-liquid interface. The medium on each side of a given interface is perfectly elastic. The output is the value of the reflection or transmission coefficient, specified by the user at the incidence angle anginc (see input parameters). )

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.)