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where is the problem

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belal hariz belgacem
关闭: MATLAB Answer Bot 2021-8-20
% Resoulision des systèmes non-linéaire
clc
clear
x1=5;
x2=5;
x3=5;
X=[x1;x2;x3];
deltx=1;
k=1;
while abs(deltx)>10^-6
f=[3*X(1)+cos(X(2)*X(3))-1;X(1)^2-81*(X(2)+0.1)^2+sin(X(3))+0.25;exp(-X(1)*X(2))+20*X(3)+9];
j=[3 -X(3)*sin(X(2)*X(3)) -X(2)*sin(X(2)*X(3));2*X(1) -162*(X(2)+0.1) cos(X(3));-X(2)*exp(-X(1)*X(2)) -X(1)*exp(-X(1)*X(2)) 20];
deltx=-inv(j)*f;
X=X+deltx;
k=k+1;
end
format long
racinx1=X(1);
racinx2=X(2);
racinx3=X(3);
  4 个评论
belal hariz belgacem
Thank you
The program works
My fault here ..........while abs(deltx)>10^-6
After correction
while all (abs(deltx)>10^-6)
Walter Roberson
Walter Roberson 2018-11-26
Those would be the same thing to MATLAB, it automatically supplies all()

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