随笔分类 - _数值分析
摘要：贝塞尔曲线绘图方法：```%Program 3.7 Freehand Draw Program Using Bezier Splines%Click in Matlab figure window to locate first point, and click% three more times ...
阅读全文
摘要：如题：```function X = IsStrictDiagMatrix(A)% input: A matrix% output: The matrix after transformation % if the matrix is not a square matrix, return e...
阅读全文
摘要：复合梯形法则：```function int_f = CompoundEchelon( f, a, b, m )% input : f : function handler% a : the lower limit of integral% b : the...
阅读全文
摘要：高斯牛顿法：```function [ x_ans ] = GaussNewton( xi, yi, ri)% input : x = the x vector of 3 points% y = the y vector of 3 points% r = the ra...
阅读全文
摘要：插值法实现sin函数：```%calculate and print the sine function%input: x%output: sin(x) similarfunction y = sin2(x)%save a copy of xx_temp = x;%calculate the int...
阅读全文
摘要：共轭梯度法：```function [ x, r, k ] = CorGrant( x0, A, b ) x = x0; r = b - A * x0; d = r; X = ones(length(x), 1); k = 0; while 1 if...
阅读全文
摘要：稀疏矩阵生成：```function [a, b] = aparsesetup(n) e = ones(n, 1); n2 = n / 2; a = spdiags([-e 3*e -e], -1:1, n, n); a(n2+1, n2) = -1; a(n2, n2+...
阅读全文
摘要：朴素高斯消去法：```function x = GauElim(n, A, b) if nargin < 2 for i = 1 : 1 : n for j = 1 : 1 : n A(i, j) = 1 / (i + j - ...
阅读全文
摘要：不动点迭代 牛顿法： 割线法： Stewart平台运动学问题求解： test our function at theta = pi / 4 and theta = pi / 4
阅读全文
摘要：嵌套乘法的计算：P(x)=1−x+x2−x3+...+x98−x99```function y = nest( d, c, x, b ) if nargin = 0 error('f(a)f(b) tol c =...
阅读全文
