between quotes that contain that local variable, and show the evaluated expression.

To activate the function in ALG mode, type the name of the function followed by the argument between parentheses, e.g., @@@H@@@ „Ü2`. Some examples are shown below:

In the RPN mode, to activate the function enter the argument first, then press the soft menu key corresponding to the variable name @@@H@@@. For example, you could try: 2`@@@H@@@ . The other examples shown above can be entered by using: 1.2`@@@H@@@ , 2/3`@@@H@@@ .

Reference

Additional information on operations with real numbers with the calculator is contained in Chapter 3 of the user’s guide.

Page 3-18