HP 17bII - Editing an Equation (EDIT); Naming an Equation

12: The Equation Solver 161
File name : English-M02-1-040308(Print).doc Print data : 2004/3/9
Editing an Equation (EDIT)
If you have an
 
, the cursor stops over the first
character that the Solver could not logically interpret.
You can alter the current equation using the ALPHA-Edit menu:
1. Press  to access the ALPHA-Edit menu. (See “Editing
ALPHAbetic Text,” page 31.) You can use
<
(backspace) and
C
(clear), as well.
2. To insert letters, press  and the appropriate letters. Press
e
to bring back the editing menu.
3. Press
I
to replace the previous version with the edited version.
Editing an equation clears its variables.
To abort an editing operation without saving any of the changes, press
e
.
Naming an Equation
Naming equations helps you identify them later. The name precedes the
equation, separated by a colon. If you don’t name an equation initially,
you can name it later using .
Type the name just as you type the rest of the equation. The calculator
knows that whatever comes before the colon is not part of the equation.
The name is for your visual aid only; the calculator cannot recognize it.
Names can be any length and contain any character except ＋ － x
÷ ( )
＜ ＞ ^ ： ＝
space