How to enter characters in cell array ?

I would like to create a cell array with the following output

A = a_1 a_2 a_3 a_4 ....... a_99

I am trying to use the loop method but it's not working. Can anyone help?

A=[]; 
for i= 1:99
A = [A, 'a_i']
  end

Answer 1

[Walter Roberson]

A={}; for i= 1:99 A = [A, sprintf('a_%d', i)]; end

[TEEH]

I have made a 3 D matrix. But i need to give each element of this matrix a name so that it can be inserted in the cell array as I need to SET UP a Linear Program .

Answer 2

[Azzi Abdelmalek]

A=sprintf('a_%d',1:99)