HP 33s - Manual (Page 166)

12–8 Simple Programming
Example: Entering a Program with an Equation.
The following program calculates the area of a circle using an equation, rather
than using RPN operations like the previous program.
Keys:
(In RPN mode)
Display: Description:
{ e {
V  
 !  Activates Program–entry
mode; sets pointer to top
of memory.
{ • E 
   Labels this program
routine E (for
"equation").
I R 
 !  Stores radius in variable
R.
| H | N
z L
R
2 ‘




πº :
Selects Equation–entry
mode; enters the
equation; returns to
Program–entry mode.
| 
/

/
| –

 ! Ends the program.
{ Y { }  
/
 Displays label E and the
length of the program in
bytes.
| 
/
/
 Checksum and length of
equation.
‡ ‡
 Cancels program entry.