$\blacktriangleright$    To define a new automatic substitution sequence

  1. From the Tools menu, choose Automatic Substitution.

  2. In the Keystrokes box, type the substitution sequence using numeric and alphabetic characters only. The sequence is case-sensitive.

  3. In the Substitution box, type the replacement expression. The expression can be any valid mathematics expression. Use the menu commands and buttons as necessary.

  4. Choose Saves

  5. Choose OK.