(self)
return self._args[0]
Return the expression which is the functional form of the Wavefunction

        Examples
        ========

            >>> from sympy.physics.quantum.state import Wavefunction
            >>> from sympy import symbols
            >>> x, y = symbols('x, y')
            >>> f = Wavefunction(x**2, x)
            >>> f.expr
            x**2
Return the expression which is the functional form of the Wavefunction
Return the expression which is the functional form of the Wavefunction
def expr(self):
        """
        Return the expression which is the functional form of the Wavefunction

        Examples
        ========

            >>> from sympy.physics.quantum.state import Wavefunction
            >>> from sympy import symbols
            >>> x, y = symbols('x, y')
            >>> f = Wavefunction(x**2, x)
            >>> f.expr
            x**2

        """
        return self._args[0]
def expr ( self ) : return self . _args [ 0 ]