Symbolic environment and loops

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.

Answer 1

[Swetha Polemoni]

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.