why is this program keep telling me this error: Unable to perform assignment because the left and right sides have a different number of elements.

clear;clc;

V=[1 2 3 4];

A=3;

%preallocation

C=zeros(1,numel(V));

xSol=zeros(1,numel(V));

ySol=zeros(1,numel(V));

for i=1:numel(V)

C(i)=V(i)-A;

syms x y

eqn1=C(i)*x+y==2;

eqn2=-x+y==3;

sol=solve([eqn1 eqn2],[x y]);

xSol(i)=double(sol.x);

ySol(i)=double(sol.y);

end

[Mathieu NOE]

hello

at which line do you get the error ?

what is the error message in the command window ?

[Pablo Zarco]

This is the message in the command window

Unable to perform assignment because the left and right sides have a different number of elements.

Error in Untitled2 (line 14)

xSol(i)=double(sol.x);

Answer 1

[David Hill]

I would avoid symbolic if you can

V=[1 2 3 4];
A=3;
Sol=zeros(2,length(V));
for i=1:length(V)
    Sol(:,i)=[V(i)-A,1;-1,1]\[2;3];
end