Symbolic environment and loops

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Bruno Souza
Bruno Souza 2021-4-13
回答： Swetha Polemoni 2021-4-16
Hi all,
I am trying to use the symbolic environment to generate T symbolic objects in my function. Since T is an input, I would like to generate the symbolic objects in a loop.
I was thinking in something like this:
for j = 1:T
syms x'j' real
x'j' = expression
end
Where the 'j' part is there to denote each symbolic variable. For T = 3, I would have 3 symbolic objects: x1, x2, and x3
Do you know if that is possible in Matlab?
I was trying to use vectors, but the problem is that I don't know how to declare a different symbolic object for each period in my loop:
sym_vector = zeros(T1,1);
for j = 1:T
syms x real
sym_vector(j) = x
end
All the best,
B.

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Swetha Polemoni
Swetha Polemoni 2021-4-16
Hi Bruno Souza
It is my understanding that you want to use loop variable j to create different symbolic variable names. Following code snippent might help to serve the purpose.
for j = 1:5 % line 1
symbolicvariable=strcat("x",int2str(j)); % line2
syms symbolicvariable real % line 3
end % line 4
line 2 gives variable names such as x1, x2.... xT which can be used as symbolic variable in every iteration.

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