For loop with subs

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Ali Tawfik
Ali Tawfik on 14 Jul 2019
Answered: TADA on 14 Jul 2019
Hi All,
I have been trying to to have three different matrix based on the values of y , z, however, it's strange, the output matrix of mat is not 1*3 its 4*9 ?
Why can not I have three different matrices (1*3)?
syms l1 l2 real;
mat=[1 2 3;l1 2 l1];
for i=1:3
z=[1 2 3;4 5 y];
Ali Tawfik
Ali Tawfik on 14 Jul 2019
Hi Walter,
Thanks for your reply.
I did not say I expect matrix smaller than 2* 3, I said, I would expect the same size, however, the output result is different and bigger ?
So could you please help me ?

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Answers (1)

TADA on 14 Jul 2019
You are setting a 2x3 matrix into l2, which duplicates mat for all possible substitutions
2x3 times 2x3 = 4x9

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