Texas Instruments TI Programmable 57

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04
When running, you'll enter r here,
Calculate (n—r)! with subroutine 2.
Store (n—r)! in memory 3
Catculate n!
(n—r)i rl
then stop & reset
Label subroutine 2
Caleulate factorial «
(see program in Chapter 4)
End of subroutine.