Creating a symbolic array

When I tried to create an array consisting of expressions in terms of a symbolic variable I get the error message

Unable to convert expression containing symbolic variables into double array. Apply 'subs' function first to substitute values for variables.

But I don't want to evaluate the expressions at a particular value. Instead I want expressions in terms of the symbolic variable q. Does anyone have suggestions regarding how this can be done?

syms q 
 
a = []; 
for i = 1:5
for j = 1:5
a(i,j) =q;
end 
end 

Answer 1

[Walter Roberson]

a = sym([]);

or better yet

a = zeros(5,5,'sym')

[Aleem Andrew]

Thanks for your answer

Answer 2

[Stephan]

>> q = sym('q', [5, 5])

 
q =
 
[ q1_1, q1_2, q1_3, q1_4, q1_5]
[ q2_1, q2_2, q2_3, q2_4, q2_5]
[ q3_1, q3_2, q3_3, q3_4, q3_5]
[ q4_1, q4_2, q4_3, q4_4, q4_5]
[ q5_1, q5_2, q5_3, q5_4, q5_5]
 
>> whos q
  Name      Size            Bytes  Class    Attributes

  q         5x5                 8  sym
  
>> q(1,1:end) = 42
 
q =
 
[   42,   42,   42,   42,   42]
[ q2_1, q2_2, q2_3, q2_4, q2_5]
[ q3_1, q3_2, q3_3,   42, q3_5]
[ q4_1, q4_2, q4_3, q4_4, q4_5]
[ q5_1, q5_2, q5_3, q5_4, q5_5]

Answer 3

[Steven Lord]

If you want an array of q's:

syms q
A = repmat(q, [5 5])

A =