HP 33s - Manual (Page 177)

Simple Programming 12–19
2. Press b . This turns on the "¾" editing cursor, but does not delete anything in
the equation.
3. Press b as required to delete the function or number you want to change,
then enter the desired corrections.
4. Press ‘ to end the equation.
Program Memory
Viewing Program Memory
Pressing { e toggles the calculator into and out of program entry (PRGM
annunciator on, program lines displayed). When Program–entry mode is active,
the contents of program memory are displayed.
Program memory starts at  ! . The list of program lines is circular, so you
can wrap the program pointer from the bottom to the top and reverse. While
program entry is active, there are three ways to change the program pointer (the
displayed line):
„ Use the cursor keys, { j and { h . Pressing { j at the last
line moves the pointer to  ! , while pressing { h at  !
moves the pointer to the last program line.
To move more than one line at a time ("scrolling"), continue to hold the š
or ™ key.
„ Press { V   to move the program pointer to  ! .
„ Press { V  label nnnn to move to a labeled line number less than
10000.
If Program–entry mode is not active (if no program lines are displayed), you can
also move the program pointer by pressing
{ V label .
Canceling Program–entry mode does not change the position of the program
pointer.