HP 35s User Manual page 109

To display equations:

1. Press . This activates Equation mode and turns on the EQN annunciator.
The display shows an entry from the equation list:
   if the equation pointer is at the top of the list.
The current equation (the last equation you viewed).
×
2. Press or
The list "wraps around" at the top and bottom.    marks the
"top" of the list.
To view a long equation:
1. Display the equation in the equation list, as described above. If it's more than
14 characters long, only 14 characters are shown. The
indicates more characters to the right.
Õ
2. Press to begin editing the equation at the beginning, or press
begin editing the equation at the end. Then press
move the cursor through the equation one character at a time.
display when there are more characters to the left or right.
Ö
3. Press
To select an equation:
Display the equation in the equation list, as described above. The displayed
equation in line 2 is the one that's used for all equation operations.
Example: Viewing an Equation.
View the last equation you entered.
Keys:

Õ
Ö

Ø
to step through the equation list and view each equation.
Õ
or to scroll the long equations in line 2 by a screen.
Display:


_
Displays the current equation in the
equation list.
Activates cursor to the left of the
equation
Activates cursor to the right of the
equation
Leaves Equation mode.
Entering and Evaluating Equations
annunciator
Ö Õ
or repeatedly to

and
Description:
Ö
to
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