function [x,y]=line_solution(A,b) [m,n]=size(A); y=[]; if norm(b)>0 %非齐次方程组 if rank(A)==rank([A,b]) if rank(A)==n %有唯一解 disp('原方程组有唯一解x') x=A\b; else %方程组有无穷多个解,基础解系 disp('原方程组有无穷个解,特解为x,其齐次方程组的基础解系为...
第06章_MATLAB数值计算_参考解答
解:M文件clc;clear;format ratA=2 7 3 1;3 5 2 2;9 4 1 7;b=6 4 2;x,y=line_solution(A,b) :。5. 求代数方程的数值解。(1) 3x+sin 14、x-ex=0在x0=1.5附近的根。(2) 在给定的初值x0=1,y0=1,z0=1下,求方程组的数值解。解:M文件:function g=f(x)g=3*x+sin(x)-exp(x)...
5 警告: Unable to solve symbolically. Returning a numeric solution using vpasolve. > In sym/solve (line 304) In guo_20230421_16 (line 15) S = -0.63673265080528201088799090383828 V = 1.4096240040025962492355939705895 S = 包含以下字段的 struct: u: [1×1 sym] v: [1×1 sym] ans = 1/3 ans...
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[x,y]=line_solution(A,b) : . 5. 求代数方程的数值解. (1) 3x+sinx-ex=0在x0=1.5附近的根. (2)在给定的初值x0=1,y0=1,z0=1下,求方程组的数值解. 解:M文件: functiong=f(x) g=3*x+sin(x)-exp(x); clc;clear; fzero('f',1.5) (2). M文件: ...
('有无穷个解,基础解系y'); y=null(A,'r'); end end 命令 format rat A=[2 7 3 1;3 5 2 2;9 4 1 7]; b=[6 4 2]'; [x,y]=line_solution(A,b) 运行结果 有无穷个解,特解 x,基础解系 y Warning: Rank deficient, rank = 2, tol = > In line_solution at 11 x= -2/11 ...
To demonstrate the command-line functionality for creating and viewing fuzzy inference systems, this example uses a solution to the tipping problem defined inFuzzy vs. Nonfuzzy Logic. For this problem, tipping behavior is defined using the following three rules. ...
而要提高 1 阶准确度,又需要增加较多的计算次数,如下表所示。\begin{array}[b]{c|c} \hline 级数\ r & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9\\ \hline 最高准确度阶数 & 2 & 3 & 4 & 4 & 5 & 6 & 6 & 7\\ \hline \end{array} \\...
Use a larger population and a hybrid function to try to get a better solution. Specify the objective function and bounds. Get fun = @(x)x(1)*exp(-norm(x)^2); lb = [-10,-15]; ub = [15,20]; Specify the options. Get options = optimoptions('particleswarm','SwarmSize',...