Hi, I am trying to assign a value to a variable (g). This variable has a subscript composed of two more variables (j,k) separated by an invisible comma. J and k are used for indexing purposes. It seems that Mathematica can't assign a value (3 for example) to the indexed g. Or did I do something wrong?
Subscript[g, j\[InvisibleComma]k] /. {j -> 2, k -> 2,
Subscript[g, 2\[InvisibleComma]2] -> 3}
Thanks in advance.