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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
zL
R
2

π
º:
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.