HP 35s User Manual page 237

To begin, put the calculator in Program mode; if necessary, position the program
pointer to the top of program memory.
Keys:
(In ALG mode)
 
 
Type in the program:
Program Lines:
(In ALG mode)
  
  
  
  
  
  
    
 
Checksum and length: F425 33

Press to cancel Program–entry mode.
Use program "G" to solve for the pressure of 0.005 moles of carbon dioxide in a
2–liter bottle at 24 °C.
Keys:
(In ALG mode)
G
P

Display:
 
Identifies the programmed function.
Stores P for pressure
Stores V for volume
Stores N for number of moles of gas
Stores R for gas constant
Stores T for temp.

Press
Pressure volume = Moles
Ends the program.
Display:

value

value
Solving and Integrating Programs
Description:
Sets Program mode.
Description:
gas constant
Description:
Selects "G" — the program.
SOLVE evaluates to find the value
of the unknown variable.
Selects P; prompts for V.
Stores 2 in V; prompts for N.
temp.
15-3