Calling Matrices as input variables to another function

Indeed, you cannot define a function where the parameters to the function are function calls.

But you can define a function where the parameters to the function are function names. So simply define:

IsParam( f1 , f2 ):=if (f1=f2 , <whatever> , <orelse> )

Then you define values for pnumber and row, and you call that function with:

IsParamMatch( RBoM_fixed_params_list(pnumber) , RParameter_fixed_params_list(row) )=

and it will produce <whatever> in case RBoM_fixed_params_list(pnumber) equals RParameter_fixed_params_list(row), and it will produce <orelse> in the other case.

For more flexibility you could define:

IsParam( f1 , f2 , p , r ):=if ( f1(p) = f2(r) , <whatever> , <orelse> )

and call it with:

IsParamMatch( RBoM_fixed_params_list , RParameter_fixed_params_list , pnumber , row )=

Here's a small example:

Success!
Luc
P.S. You should attach your worksheet...

Hi @VN_13282660,

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution. It will help other members who may have the same question.
Of course, if you have more to share on your issue, please pursue the conversation. 

Thanks,
Anurag