Question: Is it possible to call a procedure having inputs by brackets instead of paranthesis?

I have a procedure, and I want to use it so many times whthin my equations, because all notation in my equations are in indicial format, it will be so nice if I can call the procedure in indicial form rather than paranthesis form.

Is there anyone knows how is it possible in Maple?

Rr is my procedure that accepts 2 inputs, So there is no problem to call it using Rr(x,y), I am trying to call it with Rr[x,y] (indicial form

)

Is it possible to do so in Maple? It will be so great to do so.

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