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实验2-插值与拟合
- 1、掌握用MATLAB计算拉格朗日、分段线性、三次样条三种插值的方法,改变节点的数目,对三种插值结果进行初步分析。 2、掌握用MATLAB作线性最小二乘的方法。 3、通过实例学习如何用插值方法与拟合方法解决实际问题,注意二者的联系和区别。-1. Grasp by matlab calculating Lagrange, segement linear, 3rd order spline these 3 interpolation method. Analisize the 3 interpola
MATLAB实现拉格朗日、分段线性、三次样条三种插值的方法
- MATLAB实现拉格朗日、分段线性、三次样条三种插值的方法,改变节点的数目,对三种插值结果进行初步分析,MATLAB realization of Lagrange, piecewise linear, cubic spline interpolation in three ways, changing the number of nodes, interpolation of three preliminary analysis of the results
interpolation.rar
- 几种传统的图像插值放大方法:最近邻插值法,双线性插值法,双三次插值法,Several traditional interpolation to enlarge the image : nearest neighbor interpolation, bilinear interpolation, bicubic interpolation.
Rungehanshuchazhiwenti.rar
- 比较三次样条插值和拉格朗日插值多项式对runge函数插值的效果并作图解释,Comparison of cubic spline interpolation and Lagrange interpolation polynomial interpolation of the Runge function and mapping to explain the effect of
shuangsancichazhi.rar
- 实现双三次插值图像缩放算法,修改k值,即可修改放大倍数或缩小倍数!,To achieve bi-cubic interpolation algorithm for image scaling, modified k values can be modified to enlarge or shrink the multiples of multiples!
spline 三次样条差值函数
- 三次样条差值函数,用于插值、曲线,曲面拟合,数据拟合
EMD
- 本程序为EMD(经验模态分解算法)用于MATLAB的M文件,内含EMD分解所需的三次样条插值算法-This procedure for the EMD (empirical mode decomposition) for the MATLAB M-files containing the required EMD decomposition of cubic spline interpolation algorithm
123456
- 根据所给样本数据用三种不同的方法绘制该公路并估计其长度。 分别用线性插值法、最近邻域插值法和三次样条插值法计算公路长度,并用勾股定理估计公路的长度 -According to the sample data in three different ways, the road map and estimate its length. , Respectively, by linear interpolation, nearest neighbor interpolation domain
szfxsy1
- 实验一:三次样条插值(P56,例6) 一、实验目的: 1) 掌握三次样条插值的运用 2) 了解拉格朗日插值在高次上的误差 二、实验环境:Matlab6.5 三、实验内容: 1) 给定函数f(x)=1/(1+x2),-5<=x<=5,节点xk=-5+k,(k=0,1,2…10),用三次样条插值求S10(x),S10’(-5)=f’(-5),S10’(5)=f’(5)。 2)作原函数f(x),拉格朗日插值函数Ln(x),三次样条差值函数Sn(x)。画出三个函
fit
- 用差分方程或数值微分解决简单的实际问题。 实验3 插值与数值积分 l 插值问题提法和求解思路 l Lagrange插值的原理和优缺点 l 分段线性和三次样条插值的原理和优缺点 l 用MATLAB实现分段线性和三次样条插值 l 梯形、辛普森积分公式的原理及MATLAB实现 l 数值积分公式的误差——收敛阶的概念 l 高斯积分公式 l 广义积分与多重积分 l 用插值和数值积分解决
sanci
- 三次样条插值模拟曲线,基于matlab的程序-Cubic spline interpolation curve simulation, matlab program
sample
- 三次样条插值函数的三弯矩法,精度较高,值得一看-Cubic spline interpolation function of the three moment method, high accuracy, see
2degreeinter
- 最优化理论与方法课本算法matlab实现 二次插值法,包括抛物线插值和三点二次插值 具体使用方法详见程序说明-Optimization theory and methods of textbooks matlab algorithm to achieve quadratic interpolation, including the parabolic interpolation, and 3.2 times the specific use of interpolation method
wave-inter
- 小波插值(全小波插值,小波双线性插值,小波双三次插值及其改进)放大图像,提高图像的分辨率;对插值图像做质量评价(峰值信噪比PSNR;均方信噪比SNR)-Wavelet interpolation (full wavelet interpolation, wavelet bilinear interpolation, cubic interpolation and improved method) to enlarge the image and improve image resolution
matlab插值与数据拟合
- 使用matlab的插值与数据拟合,含有插值原理,方程,插值方法有:拉格朗日多项式插值,分段线性插值,三次样条插值,最小二乘法,有多个实例(有源码、语句、结果、图像等)
插值runge现象
- 针对高次插值runge的学习代码,比较段数N不同时分段线性插值和三次样条插值,均给出误差曲线。(In view of the learning code of high order interpolation Runge, the number of comparison segments N does not simultaneously piecewise linear interpolation and three cubic spline interpolation, and the e
三次样条
- 三次样条插值算法实现,求其三次样 条插值多项式, I 型或 II 型边界条件,(Implementation of three spline interpolation algorithm)
算法2三次样条插值
- 在matlab中实现三种边界条件下的三次样条插值,以龙格函数为例(n the MATLAB, we implement three spline interpolation under three boundary conditions, taking Runge function as an example.)
三次样条插值
- 程序主要实现了三次样条插值,程序注释很详细(It mainly implements cubic spline interpolation with detailed program annotations.)
Matlab各种插值法.part6
- Matlab的 各种插值法..代码,Lagrange插值..Newton插值... Hermite插值... 分段低次插值... 三次样条插值 二维插值...(Various interpolation methods of MATLAB.)