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实现位场数据的向上延拓运算，有效的消除数据中的噪音及浅部干扰。(Realize the potential field data upward continuation operator, effectively eliminate the noise in the data and shallow interference.)

一个通过高斯正反算公式计算高斯投影后投影平面的二维坐标，也可通过坐标反算大地经纬度。提供54系，西安80系，WGS-84系和CGCS2000系四种椭球参数。(A positive and negative Gaussian Formulas to calculate the two-dimensional coordinates of the Gauss projection projection plane can also be computed from coordinates latitude and longitude of the earth. 54 Department of the the Xi' an 80 series, WGS-84 system and CGCS2000 Department of four oval ball parameters.)

sar图像去噪的几种新的方法，数学方法是部分子空间法，实现典型相关分析。( Several new methods sar image denoising, Mathematics is part of the subspace, Achieve canonical correlation analysis.)

一些很有用的数值计算程序：包括多种数值逼近算法的C语言程序，如龙格逼近算法，里米兹一致逼近算法等(Some very useful numerical calculation procedures: including a variety of numerical approximation algorithm for the C language program, such as the Runge approximation algorithm, where meads uniform approximation algorithm)

Gambit用户使用说明书(中文版), Gambit是CFD商用软件Fluent的前处理软件,主要作用是建立网格模型,其功能(Gambit user manual (Chinese version), Gambit is the pre-processing software of CFD commercial software Fluent, the main function is to build grid model, its function)

％ SSOR预处理的共轭梯度法求解方程Ax=b ％ 输入参数说明 ％ A 正定矩阵[n*n] ％ b 右边向量 ％ omega SSOR预处理参数(0--2) ％ Times 迭代次数 ％ errtol 给定误差终止条件 ％ ％输出参数 ％ NewX 方程Ax=b的x近似解 ％ avgerr 求解的当前平均绝对误差( SSOR preconditioning conjugate gradient method for solving equations Ax = b the input parameter descriptions A positive definite matrix [n* n] b right side vector omega SSOR preconditioning parameters (0- 2) Times iterations errtol termination of a given error condition NewX output parameter equation Ax = b of x approximate solution to solve the current avgerr average absolute error)

利用五点差分格式和Jacobi迭代法，求解精确解和数值解的误差，判断阶数是否正确(Five-point difference scheme and Jacobi iteration method are used to solve the error between exact solution and numerical solution and to judge whether the order is correct or not.)

通过换能器测量得到材料的信号到达时间，根据一些已知条件以及声学公式计算材料的声速(Measured by the transducer signal arrival time of the material, according to some known conditions, and calculated acoustic velocity materials)

说明：  逆BROYDEN迭代法求解非线性方程组：是一种相对比较新的一种方法,克服了牛顿迭代法需要求导数和求逆的缺点。本程序提供解法和画图流程，注意多迭代几步(Inverse BROYDEN iteration method is a relatively new method for solving nonlinear equations, which overcomes the shortcomings of Newton iteration method in derivative and inversion. This program provides solution and drawing process. Remember more several steps of iteration.)

欧拉角和四元数的转换：输入偶欧拉角，按Rechnen，程序会自动将欧拉角转换为四元数，再得出最终的方位。(Euler angles and quaternion conversion: input dual Euler angles, press Rechnen, the program will automatically Euler angles conversion quaternion, and then come to the final orientation.)