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na7
Orthogonal Polynomials Approximation
数值分析，计算正交基多项式的系数
(Given a function f and a set of m >0 distinct points . You are supposed to write a function to approximate f by an orthogonal polynomial using the exact function values at the given m points with a weight assigned to each point . The total error must be no larger than a given tolerance.
Format of function
int OPA( double (*f)(double t), int m, double x[], double w[], double c[], double*eps )
where the function pointer double (*f)(double t) defines the function f int m is the number of points double x[] contains points double w[] contains the values of a weight function at the given points x[] double c[] contains the coefficients of the approximation polynomial double*eps is passed into the function as the tolerance for the error, and is supposed to be returned as the value of error. The function OPA is supposed to return the degree of the approximation polynomial.
Note: a constant Max_n is defined so that if the total error is still not small enough when n = Ma)
- 2011-11-27 11:47:21下载
- 积分：1
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t_tide_v1.2beta
t_tide潮流分离更新新版本。可以针对潮汐与海流进行有针对性分离。(t_tide trend separation to update the new version. Targeted separation for tides and currents.)
- 2013-03-14 19:50:37下载
- 积分：1
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geopot97.v0.4e.f
大地测量软件，可以计算大地水准面、重力异常、重力梯度等各种物理量(Geodesy software, coordinate transformation, geoid calculation)
- 2013-09-09 08:07:53下载
- 积分：1
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雷达sra成像 C语言
描述了雷达sra成像等，用c语言开发 ，包含有fft等程序(Describes the radar imaging Sra, using c language development, contains the procedures fft)
- 2008-12-14 20:48:52下载
- 积分：1
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kalmanvswiener
对比卡尔曼滤波和维纳滤波对一阶gaussian-markov过程的滤波预测。(Contrast Kalman filter and Wiener filter of first-order gaussian-markov forecast filtering process.)
- 2008-06-19 20:27:41下载
- 积分：1
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ArrayAscendingOrder
sorting different kind of arrays
- 2012-08-21 16:01:04下载
- 积分：1
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roefou
用Roe格式的一阶迎风差分方法解决欧拉方程的黎曼问题(Solves the Riemann problem for the Euler equations using Roe s first-order upwind method
)
- 2020-10-18 23:47:26下载
- 积分：1
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Numerical_Recipes
《数值分析方法库_第三版
》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 3rd Edition: The Art of Scientific Computing》, Do you want easy access to the latest methods in scientific computing? This greatly expanded third edition of Numerical Recipes has it, with wider coverage than ever before, many new, expanded and updated sections, and two completely new chapters. The executable C++ code, now printed in color for easy reading, adopts an object-oriented style particularly suited to scientific applications. Co-authored by four leading scientists from academia and industry, Numerical Recipes starts with basic mathematics and computer science and proceeds to complete, working routines. The whole book is presented in the informal, easy-to-read style that made earlier editions so popular. Highlights of the new material include: a new chapter on classification and inference, Gaussian mixture models, HMMs, hierarchical clustering, and SVMs a new chapter on computational geometry, covering KD trees, quad- and octrees, Delaunay triangulation, and)
- 2020-12-02 20:09:25下载
- 积分：1
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Transmission-Network-Expans1on
应用遗传算法做电网规划，把遗传算法应用于输电网络规划，提出了基于遗传算
法的输电网络规划模型，以新建线路的投资费用和系统年运
行费用之和最小为目标函数，建立了输电网络规划的数学模型。该模型还考虑了“N-1”事故检验，使得规划方案更加合理。以Garver-6节点系统为例进行优化规划(The application of genetic algorithms to do network planning)
- 2020-07-30 09:18:39下载
- 积分：1
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最小二乘法拟合程序
最小二乘拟合的matlab程序，用于数据处理。简单，易懂(The least squares fitting matlab program for data processing.Simple, easy to understand)
- 2018-04-10 16:52:13下载
- 积分：1
