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when use yalmip: Unable to perform assignment because dot indexing is not supported for variables of this type.

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Tong Liu
Tong Liu on 12 Jul 2019
Answered: Chidvi Modala on 18 Jul 2019
I use yalmip for programming problem. the code is as follows:
f=sdpvar(3,3);
delta=[1 1 0
0 0 1
0 1 0
1 0 0
0 1 1];
for a=1:5
for i=1:3
x(a,i)=delta(a,:)*f(:,i);
end
end
t_0=[7,5
9.5,6
1,1
9,6
4,3];
gamma=[2, 1];
C=[400, 300, 450, 450, 100];
for a=1:5
for i=1:2
t(a,i)=t_0(a,i)*(1+0.15*((gamma(i)*x(a,i)/C(a))^4)); %error line
end
end
but the error is 'Unable to perform assignment because dot indexing is not supported for variables of this type'. Could you please help me find out the bug?

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