牛顿插值(Newton interpolation)MATLAB代码实现 利用差商定义,为了计算插值多项式我们先列出差商表,然后利用差商表第一列即可计算 先封装一个差商函数,降低我们后续编程难度(我们后面调用这差商函数) 我们先列出差商表寻找下规律再写代码 上图中给出了一些差商表的规律和我们编程需要注意的细节。 我们发现先编程用前-后(...
공유 MATLAB Online에서 열기 다운로드 Although this is the most basic non-linear solver, it is surprisingly powerful. It is based on the Newton-Raphson method in chapter 9.6-7 of Numerical Recipes in C. In general for well behaved functions and decent initial guesses, its ...
編集済み:Rohitashya
Used to calculate coefficients of a interpolation polynomial http://en.wikipedia.org/wiki/Divided_differences Usage : divdiff(x,y), or divdiff(x,f(x)) if f is an anonymous function. Steal my code... knowledge should be shared. Just don't try and sell it... unless you need lunch mo...
MATLAB Online에서 열기 테마복사 >> whos Y Name Size Bytes Class Attributes Y 3x3 72 double >> whos Yold Name Size Bytes Class Attributes Yold 3x3 72 double When I checked it- 테마복사 Y = -0.0249 -0.0056 0.0004 -0.0188 0.0005 0.0065 -2....
It was expounded in detail that the basic principles to construct quadratic interpolation polynomials with Newton substrate in this article, then it was applied to look-up table and evaluation, moreover they were realized by MATLAB7 programming; At last, the interpolation error was analyzed and ...
Hmmm, makes you wonder whether FZERO requires differentiability of the function. The bisection part does not, but the secant and quadratic interpolation parts might... Don't see anything in the documentation addressing that.
% % Generalized loop for Newton and Spline-based interpolation % nu = size(u, 1); % Input frame size % nc = size(u, 2); % Number of channels % % % Initialize constants and variables % L = coder.const(obj.PrivL); % M = coder.const(...
利用差商定义,为了计算插值多项式我们先列出差商表,然后利用差商表第一列即可计算 先封装一个差商函数,降低我们后续编程难度(我们后面调用这差商函数) 我们先列出差商表寻找下规律再写代码 上图中给出了一些差商表的规律和我们编程需要注意的细节。 我们发现先编程用前-后(第i项-第i+1项)给出差商表第一行,然后第...