TM 5-6675-321-14
( b ) . I f s t a t i s t i c a l p r o b l e m i n v o l v e s o n l y o n e v a r i a b l e ( x ) , c l e a r s t o r a ge
r e g i s t e r s R . 0 t h r o u g h R . 5 a n d Y - r e g i s t e r .
press
(7J ,~,
and
= .
K e y n u m b e r i n t o X - r e g i s t e r.
P r e s s ~ .
NOTE
U n l i k e s t o r a g e r e g i s t e r a r i t h m e t i c,
t h e a c c u m u l a t i o n o p e r a t i o n a l l o w s o v e r -
f l o w s ( i . e . ,
number whose magnitudes are greater than 9.99999999 x 1099)
i n s t o r a g e r e g i s t e r s R . 0 t h r o u g h R . 5 w i t h o u t i n d i c a t i n g E r r o r 1 i n t h e d i s p l a y.
(c). To use any of the accumulations, recall contents of desired storage register
i n t o d i s p l a y e d X - r e g i s t e r b y p r e s s i n g ~ q f o l l o w e d b y t h e n u m b e r o f t h e r e g i s -
t e r .
I f t h i s i s d o n e i m m e d i a t e l y a f t e r p r e s s i n g ~ or ~- , t h e a c c u m u l a t i o n r e c a l -
l e d i s w r i t t e n o v e r t h e n u m b e r o f d a t a p a i r e n t r i e s ( n ) i n t h e d i s p l a y . TO u s e b o t h
~xand~y , p r e s s ~~.
T h i s s i m u l t a n e o u s l y c o p i e s xx from R.1 into
d i s p l a y e d X - r e g i s t e r a n d copieszy f r o m R . 3 i n t o Y - r e g i s t e r . I f t h i s i s d o n e
i m m e d i a t e l y a f t e r p r e s s i n g + ,x- , ~
, o r =]
the number in the Y-
r e g i s t e r i s f i r s t l i f t e d i n t o t h e Z - r e g i s t e r .
Otherwise, the numbers in the X- and
Y - r e g i s t e r s a r e f i r s t l i f t e d i n t o Z - a n d T - r e g i s t e r s , r e s p e c t i v e l y .
Example:
T o f i n d xx, ~x2, ~y,
~y2, and~xy f o r t h e p a i r e d v a l u e s o f x a nd
y l i s t e d
below, press
y
7
5
9
x
5
3
8
Keystrokes
D i s p l a y
CLEAR z
0.0000
El
El
q
El
E
q
m
7.0000
El
1.0000
m
5.0000
El
2.0000
m
9.0000
D
3.0000
C l e a r s t a t i s t i c a l s t o r a ge
r e g i s t e r s .
(Display shown
assumes no results remain
f r o m p r e v i o u s c a l c u l a t i o n s .)
F i r s t p a i r i s a c c u m u l a t e d : n = 1
S e c o n d p a i r i s a c c u m u l a t e d :
n=2
T h i r d p a i r i s a c c u m u l a t e d : n = 3
6-28
