HP 33s - Manual (Page 215)

Solving and Integrating Programs 14–5
| –

 ! Ends the program.
‡
)

 Cancels Program–entry mode.
Checksum and length of program: 36FF 21
Now calculate the change in pressure of the carbon dioxide if its temperature
drops by 10 °C from the previous example.
Keys:
(In RPN mode)
Display: Description:
I L
)

 Stores previous pressure.
| W H
)

 Selects program “H.”
 P #@
)
 Selects variable P; prompts for V.
g
@
)

 Retains 2 in V; prompts for N.
g
@
)
 Retains .005 in N; prompts for R.
g
!@

)
 Retains .0821 in R; prompts for T.
‘ 10 !@

)
 Calculates new T.
g
#
/
)
  Stores 287.1 in T; solves for new
P
.
L L .
)
 Calculates pressure change of the
gas when temperature drops from
297.1 K to 287.1 K (negative
result indicates drop in pressure).