Vector Newton Raphson Method coding help
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I have a code for the Vector Newton Raphson method (which solves 2 functions that are a function of both x and y) and I am getting the error 'Subscripted assignment dimension mismatch' at line 17 and 18. If anyone has any clue how to fix this problem to where my code runs smoothly I would really appreciate it!
x=15;
y=12;
v=[x;y];
tol=.01;
loopcnt=0;
Maxloop=56;
while loopcnt<Maxloop
f1t=-sind(x)-sind(x+y);
f1b=-sind(x+y);
f2t=cosd(x)+cosd(x+y);
f2b=cosd(x+y);
Jacobian=[f1t f1b;f2t f2b];
f1=cosd(x)+cosd(x+y)-1;
f2=sind(x)+sind(x+y)-1.1;
F=[f1;f2];
vNew=v-inv(Jacobian)*F;
vNew(1,1)=xNew
vNew(2,1)=yNew
xNew=x
yNew=y
if (vNew-vOld)>tol
else
break
end
loopcnt=loopcnt+1;
end
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답변 (1개)
Nitin Khola
2015년 11월 3일
The error message that you are getting has been discussed here: http://www.mathworks.com/matlabcentral/answers/93586-why-do-i-get-the-subscripted-assignment-dimension-mismatch-error-message
For the community to help you better, please make sure you provide code that reproduces the issue. As Jan Simon pointed out, define xNew, vOld etc.
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