How can i modify this code so x can = 0
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function qw=fNR(x)
qw=zeros(100,1)
qw(2)=x
i=2
while abs(qw(i)-qw(i-1))>1e-6
qw(i+1)=qw(i)-ff1(qw(i))/fdf1(qw(i))
i=i+1
end
qw=qw(2:i-1)
[qw(end) i]
plot(qw)
end
how can i model this functio so it can take fNR(0)
fdf1
function y=fdf1(x)
y=3*x.^2-12*x+11;
end
ff1
function y=ff1(x)
y=x.^3-6*x.^2+11*x-5;
end
0 Kommentare
Antworten (1)
Image Analyst
am 12 Feb. 2022
Try this:
function qw=fNR(x)
qw=zeros(100,1)
qw(2)=x
i=2
maxIterations = 1000;
loopCounter = 0;
while (abs(qw(i)-qw(i-1))>1e-6) && loopCounter < maxIterations
qw(i+1)=qw(i)-ff1(qw(i))/fdf1(qw(i))
i=i+1
loopCounter = loopCounter + 1;
end
qw=qw(2:i-1)
if isempty(qw)
message = sprintf('qw is empty')
uiwait(warndlg(message));
return;
end
[qw(end) i]
plot(qw)
end
5 Kommentare
DGM
am 12 Feb. 2022
Oops. I didn't realize I was commenting on the answer instead of on the question.
Image Analyst
am 13 Feb. 2022
@Muhammad Choudhury I know that was your error with the original code. Obviously you never ran my code because my code throws up an alert that the array is empty rather than your error.
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