parameters: (self, expr)
return_statement: return system._variable_names[index]
docstring: Print simple variable names instead of R.variable_name
  
          see sympy/sympy/vector/scalar.py
docstring_summary: Print simple variable names instead of R.variable_name
docstring_tokens: Print simple variable names instead of R . variable_name
function: def _print_BaseScalar(self, expr):
          """
          Print simple variable names instead of R.variable_name
  
          see sympy/sympy/vector/scalar.py
          """
          index, system = expr._id
          return system._variable_names[index]
function_tokens: def _print_BaseScalar ( self , expr ) : index , system = expr . _id return system . _variable_names [ index ]