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Paraboloidfitting
基于最小二乘法的抛物面拟合,内含有模拟数据和真是数据供参考。(Contains analog data based on the method of least squares parabolic fitting, and is really data for reference.)
- 2012-11-29 09:45:29下载
- 积分:1
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Linear-System
Fortran program which can be used to solve linear system
- 2014-10-14 08:57:43下载
- 积分:1
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guassseidel
实现高斯施戴尔迭代,可以直接输出迭代矩阵,并且,误差可以手动修改。(computate guass-sedal process )
- 2009-12-14 09:00:22下载
- 积分:1
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MSE_calculation
最小二乘算法,最小均方误差等算法的MSE的计算,MATLAB代码(Least-squares algorithm, such as minimum mean square error MSE calculation algorithm, MATLAB code)
- 2021-01-07 21:28:52下载
- 积分:1
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Lagrange
三階拉格朗日內差法。使用了Farrow結構,簡化三階多項式係數之運算。(third-order Lagrange interpolation algorithm. use Farrow structure to simplify the coefficients of the polynomial of Lagrange method.)
- 2020-12-14 18:59:13下载
- 积分:1
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PCG
% 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)
- 2007-11-16 01:14:24下载
- 积分:1
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非线性振动
非线性振动.pdf 刘延柱编写
恢复力与位移不成正比或阻尼力不与速度一次方成正比的系统的振动。尽管线性振动理论早已相当完善,在工程上也已取得广泛和卓有成效的应用,但在实际问题中,总有一些用线性理论无法解释的现象。一般说,线性模型只适用于小运动范围,起出这一范围,按线性问题处理就不仅在量上会引起较大误差,而且有时还会出现质上的差异,这就促使人们研究非线性振动。(Nonlinear Vibration. Compilation of PDF Liu Yanzhu)
- 2020-11-23 20:09:34下载
- 积分:1
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unwrapphase
说明: 相位解缠和相位展开matlab程序,里面还包含多篇介绍该相关解缠算法的文章(Phase unwrapping and phase unwrapping matlab program, which also includes more than to introduce the relevant article unwrapping algorithm)
- 2021-04-12 16:58:57下载
- 积分:1
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Umat_ElasticPlastic_Explicit
Abaqus UMAT code 适用于平面应变,轴对称弹塑性本构关系,也适用于大应变情况,使用显示积分算法。(Abaqus UMAT code applies to plane strain, axisymmetric elastoplastic constitutive relation, also applicable to large strain, using the integration algorithm.)
- 2013-03-30 03:46:43下载
- 积分:1
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Program
矩阵转换问题
行与列的个数均为n 的矩阵称为n 阶方阵。假定矩阵中的每个元素的值在0到9之间,则可以将矩阵中的所有元素按行依次排列得到一个“单行矩阵字符串”。(Matrix conversion, the number of rows and columns of the matrix n are called n-order square. Assume that each element of matrix value in the 0 to 9, you can press all the elements of the matrix rows in order of priority for a " single matrix string." )
- 2010-12-28 11:42:08下载
- 积分:1