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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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UEL_XFEM
说明： 扩展有限元的Fortran代码，用于扩展有限元的数值仿真计算。(Extended finite element of the Fortran code for the extended finite element numerical simulation.)
- 2010-04-28 13:20:19下载
- 积分：1
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JocobiGG
本程序是根据jacobi过关法求实对称矩阵的全部特征值和特征向量(This procedure is based on realistic method jacobi clearance of all symmetric matrix eigenvalue and eigenvectors)
- 2009-06-27 14:20:10下载
- 积分：1
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fitellipse(two-method)
我收集的老外编的椭圆拟合算法，C++实现，输入一组XY数据就能求出椭圆参数(I collected foreigner series the oval fitting algorithm, C++, achieve)
- 2020-10-16 09:17:29下载
- 积分：1
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Untitled
由Music算法估计线阵波达方向，搜索频谱波峰。(Estimation of linear array DOA by Music algorithm, searching spectral peak.)
- 2013-10-25 14:37:33下载
- 积分：1
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interpolation
说明： Neville插值算法，xa为自变量数组，xy为因变量数组；x为待插值的自变量(Neville interpolation algorithm, xa array as variables, xy array as the dependent variable x for the independent variables to be interpolated)
- 2008-09-25 16:29:52下载
- 积分：1
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高阶统计量
说明： 有用的软件，用于高阶统计量计算。代码完整，计算效率高。(useful software for high-end statistical calculation. Code integrity, high computational efficiency.)
- 2005-11-28 14:39:23下载
- 积分：1
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频散曲线求解代码
说明： 弹性波中瑞雷波的正演计算。求解多层瑞雷波频散曲线。计算速度快。（专业小软件）(elastic wave Rayleigh wave to the calculation. Solving multi-storey Rayleigh wave dispersion curves. Calculation speed. (Professional small software))
- 2021-01-05 10:38:54下载
- 积分：1
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data-fit
基于最小二乘法的离散数据的曲面拟合，有二次拟合和三次拟合，并能自动出图(Based on the least squares method of discrete data of the surface fitting, there are quadratic fitting and three fitting, and can automatically plot)
- 2021-04-23 09:18:48下载
- 积分：1
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模拟波动方程的有限元程序 FEM
模拟波动方程的有限元程序，计算波场快照，有程序说明！(Simulation of the wave equation, the finite element program, calculate the wave field snapshot, procedural instructions)
- 2020-06-30 00:20:02下载
- 积分：1
