HP 50g Graphing, 48gII Graphing manual Torsa K, Torsv K, ` 8 J %TORSV%

Program:	Comments:
«
→ a b	Creates local variables a and b.
'π^2*(b^2a^2)'	Calculates the surface area.
→NUM	Converts algebraic to a number.
»
`	Puts the program on the stack.
O TORSA K	Stores the program in TORSA.

Here is a stack diagram and program listing for TORSV.

Level 2	Level 1	→	Level 1
a	b	→	volume
Program:		Comments:
«
→ a b		Creates local variables a and b.
«		Starts a program as the defining
		procedure.
a b TORSA		Puts the numbers stored in a and b
		on the stack, then calls TORSA
		with those arguments.
b a * 4 /		Completes the volume calculation
		using the surface area.
»		Ends the defining procedure.
»
`		Puts the program on the stack.
O TORSV K		Stores the program in TORSV.

Now use TORSV to calculate the volume of a torus of inner radius a = 6 and outer radius b = 8.

6 ` 8 J %TORSV%

130 RPL Programming