Problem with displaying format
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I tired for displaying Value of f and conclusion but it seem not working. here is my code:
clc
clear all
syms x y
f(x,y)=x^3-3*x*y+y^3;
fx=diff(f,x);
fy=diff(f,y);
fxx=diff(fx,x);
fyy=diff(fy,y);
fxy=diff(fx,y);
D=(fxx*fyy)-(fxy)^2;
eqns=[fx==0,fy==0];
vars=[x y];
[sol_x sol_y]=solve(fx==0,fy==0,'Real',true);
conclusion={};
f_val=[];
for i=1:length(sol_x)
if( subs(D,{x,y},{sol_x(i),sol_y(i)})>0 && subs(fxx,{x,y},{sol_x(i),sol_y(i)})>0 )
conclusion{end+1}='min';
f_val(end+1)=f(sol_x(i),sol_y(i));
elseif(subs(D,{x,y},{sol_x(i),sol_y(i)})>0 && subs(fxx,{x,y},{sol_x(i),sol_y(i)})<0)
conclusion{end+1}='max';
f_val(end+1)=f(sol_x(i),sol_y(i));
elseif(subs(D,{x,y},{sol_x(i),sol_y(i)})<0)
conclusion{end+1}='saddle';
f_val(end+1)=f(sol_x(i),sol_y(i));
else
conclusion{end+1}='undetermine';
f_val(end+1)=f(sol_x(i),sol_y(i));
end
end
conclusion'
f_val'
result=[num2cell(f_val) conclusion']
error:
Error using horzcat Dimensions of matrices being concatenated are not consistent.
Any solution will be aprreciated.
Thanks in advance.th
4 comentarios
KALYAN ACHARJYA
el 1 de Oct. de 2019
When you use the following, then there is no error-
result=[num2cell(f_val) conclusion]
The answer provider on this Matlab Answer may not be from the same subject, it would be easy to answer, if you can provide us with the expected result?
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