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Matlab 牛顿插值法
- x=a:(b-a)/n:b; %插值节点 y=f(x); plot(x,y,'b') %用蓝色线作被插函数图象 hold on z=a:(b-a)/(2*n):b; n=length(x); for j=2:n for i=n:-1:j y(i)=(y(i)-y(i-1))/(x(i)-x(i-j+1));%计算差商 end end u=y(n); m=length(z); for j=1:m for i=n-1:-1:1 u=y(i)
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
optimizationinMatlab.rar
- MATLAB最优化计算20例.m文件,包括二次插值,黄金分割,罚函数法,遗传算法,拉格朗日乘子法等,MATLAB Optimization Calculation of 20 cases. M documents, including quadratic interpolation, Golden Section, penalty function method, genetic algorithm, Lagrange multiplier method
general-krining
- 一种常用的插值计算方法,普通克里金法,采用球状模型的半变异函数。-A common interpolation methods, ordinary kriging method using spherical model semivariogram.
linear
- 一个简单的线性插值实例可以运算利用数值分析的函数-A simple linear interpolation example of computing the use of numerical analysis can be a function of
new
- 本文主要讨论在MATLAB软件中如何实现C程序源代码的移植。结合"道路平整度指数(IRI)预测问题"的实例,将C语言编写自仿射变换分形插值函数,移植(或改写)到MATLAB中,绘制出宁波机场道路平整度的预测图象,为解决预测问题可视化提供帮助。-This paper mainly discusses the MATLAB software, how to achieve C source code of the transplant. Conjunction with the road roug
chazhi
- Lagrange插值、Newton插值函数等插值函数,函数为数值分析课本上的例题。-Lagrange interpolation, Newton interpolation function, such as interpolation function, function for the numerical analysis of the textbooks on the sample questions.
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
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
matlab
- 运用三次样条插值函数法对一条已知的折线进行圆滑(编程实现)-The use of cubic spline interpolation function of a line known for sleek (Programming)
shuzhifenxichazhi
- 该算法集集中了数值分析当中几乎所有的插值算法,如牛顿法,艾特肯法,高斯法,样条函数法等,均在MATLAB(R2006@)中运行通过了。-The algorithm sets a numerical analysis which focused on almost all the interpolation algorithms, such as Newton' s law, Aitken law, Gauss law, such as spline function method, are
cspline
- 通用三次样条插值函数,可求解离散点的三次样条插值-General cubic spline interpolation function, can solve the discrete points of the cubic spline interpolation
数据插值与函数逼近
- matlab数据插值与函数逼近.内容非常详尽的幻灯片。-matlab data interpolation and approximation. the content is very detailed slide show.
4
- 插值的函数 函数名 功能 Language 求已知数据点的拉格朗日插值多项式 Atken 求已知数据点的艾特肯插值多项式 Newton 求已知数据点的均差形式的牛顿插值多项式 Newtonforward 求已知数据点的前向牛顿差分插值多项式 Newtonback 求已知数据点的后向牛顿差分插值多项式 Gauss 求已知数据点的高斯插值多项式 Hermite 求已知数据点的埃尔米特插值多项式 SubHermite 求已知数据点的分段三次埃尔米特插值多项式及其
interp1
- 一个MATLAB源函数,用来计算插值,可以选择使用线性,三次样条插值,Hermite插值等方法,希望对大家有用。-A MATLAB source function, used to calculate the interpolation, you can choose to use linear, cubic spline interpolation, Hermite interpolation, in the hope that useful.
第4章 插值
- 在离散数据的基础上补插连续函数,使得这条连续曲线通过全部给定的离散数据点。插值是离散函数逼近的重要方法,利用它可通过函数在有限个点处的取值状况,估算出函数在其他点处的近似值。插值:用来填充图像变换时像素之间的空隙。(On the basis of discrete data, a continuous function is inserted to make the continuous curve pass through all the given discrete data points.
河底光缆曲线MATLAB求解程序--三次样条函数插值
- 利用三次样条函数插值方法,拟合河底光缆曲线。MATLAB完整程序(Three times spline interpolation method is used to fit the curve of river bottom optical fiber cable. MATLAB complete program)
RBF
- 径向基函数插值使用一系列基函数,它们在每个采样点对称且居中。径向基函数是一类特殊的函数,其主要特征是它们的响应与中心点的距离单调地减小(或增加)。中心、距离刻度和精确的形状是模型的参数。(Radial Basis Function interpolation with biharmonic, multiquadric, inverse multiquadric, thin plate spline, and Gaussian basis functions for Matlab/Octave.
牛顿插值法
- 利用牛顿插值法获取多项式系数,同时绘制插值函数和原函数对比图(Obtaining polynomial coefficients by Newton interpolation method and draw the comparison diagram of the interpolation function and the original function at the same time)
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.)