Wsine - 博客园

2015年7月10日

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

posted @ 2015-07-10 00:08 Wsine 阅读(1090) 评论(0) 推荐(0)

matlab实现判断是否能否生成严格对角占优矩阵

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

posted @ 2015-07-10 00:00 Wsine 阅读(1839) 评论(0) 推荐(0)

2015年7月9日

matlab实现复合梯形法则

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

posted @ 2015-07-09 23:57 Wsine 阅读(2772) 评论(0) 推荐(0)

matlab实现高斯牛顿法、Levenberg–Marquardt方法

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

posted @ 2015-07-09 23:51 Wsine 阅读(3409) 评论(0) 推荐(0)

matlab实现插值法sin函数

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

posted @ 2015-07-09 23:44 Wsine 阅读(1820) 评论(0) 推荐(0)

matlab实现共轭梯度法、多元牛顿法、broyden方法

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

posted @ 2015-07-09 23:30 Wsine 阅读(5603) 评论(0) 推荐(0)

matlab实现雅可比、高斯塞德尔、后项误差计算

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

posted @ 2015-07-09 23:23 Wsine 阅读(1068) 评论(0) 推荐(0)

matlab实现高斯消去法、LU分解

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

posted @ 2015-07-09 23:17 Wsine 阅读(3435) 评论(0) 推荐(1)

matlab实现不动点迭代、牛顿法、割线法

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

posted @ 2015-07-09 23:13 Wsine 阅读(5489) 评论(0) 推荐(0)

matlab实现的嵌套乘法、高精度、二分法

摘要：嵌套乘法的计算：$$ P(x) = 1 - x + x^2 - x^3 + ...+ x ^ {98} - x^{99} $$```function y = nest( d, c, x, b ) if nargin = 0 error('f(a)f(b) tol c =... 阅读全文

posted @ 2015-07-09 23:04 Wsine 阅读(1184) 评论(0) 推荐(0)

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