HP 9100B Operating & Programming Manual page 106

9
PROGRAMMING THE 91008
CONTINUED
PROGRAM KEYS- SUBROUTINES
n n!
The formula used is: C k
=
k! (n _ k)!
SIMPLIFIED FLOW CHART: FINAL FLOW CHART:
I
k!
n!
n!
k!
(n - k)!
press CONT . ..._ - - ,
t
CLEAR (+ )e and
(+ )f
and STOP
,
enter n and
k,
press CONT
Store: n
~
(+ )e
k
~(+)f
1
~--
- - - - 1 - - t
k)
N! :. k!
I
Store k!
~
d
~i
+
(n -
k)!
=
C
,
Recall n
~--+-----~ n)
N! -
----~--~
..
~
n!
Subroutine -- / )
N! .. ( )
Recall k!
Divide n! / k!
Store
~ d
,,
Recall n and k
Subtract (n - k)
•
N!
~---+----t
n - k)
---1-~~
(n - k)!
Recall n!/ k!
Divide:
n!/ k!
+
(n - k)!
=
C
END
(Display)
~------J