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ERRORS
In the case of an error, the display w ill show "E " . An error w ill be caused by a calculations
or instruction beyond the capacity o f the machine. An error can be cleared by the
@
key. There are three types of error conditions: overflow, underflow, and incorrect opera
tion.
Supplementary 3 — Error Conditions
1 . A n
o v e r f lo w
e r r o r o c c u rs w h e n th e
a b s o lu te v a lu e o f a c a lc u la tio n , o r th e r e s u lt in
m e m o r y is g re a te r th a n 9 .9 9 9 9 9 9 9 9 9 x 1 0 " .
( O v e r flo w e r r o r )
2 .
T h e u n d e r f lo w e r r o r o c c u rs w h e n th e v a lu e o f a c a lc u la tio n is less th a n 1 x 1 0 ~ 9 9 .
in
th is case, th e c a lc u la to r assum es th e v a lu e is 0 a n d th e c a lc u la tio n m a y c o n t in u e instead
o f re g is te rin g an e r r o r a n d s to p p in g th e c a lc u la t i o n .
3 . W h e n a n u m b e r is d iv id e d b y 0 (z e ro ) ( E x . 5 l 4 - 1 0
[ — l )___
4 .
W h e n th e p e n d in g o p e r a tio n e x c e e d s 8 leve ls o r w h e n th e
Q H
k e y is d e p re sse d 1 6 tim ® 5
o r m o re in 1 le v e l.
5.
F o r s c ie n tific f u n c t io n s a n e r r o r o c c u rs w h e n th e c a lc u la tio n s e x c e e d th e f o llo w in g
ra n g e s:
6.
F o r th e e rro rs in f o r m u la
re s e rv e a n d h e x a d e c im a l
< —» d e c im a l c o n v e r s io n , see e ach
s e c tio n .
CALCULATION RANGE
•
T h e e n t r y a n d f o u r (4 ) a r it h m e t ic c a lc u la tio n s :
E n t r y , 1 s t o p e r a n d , 2 n d o p e r a n d : ±1 x 1 0 " 99 ~ ± 9 .9 9 9 9 9 9 9 9 9 x 1 0 99 a n d 0
C a lc u la te d r e s u lt: ±1 x 1 0 ~ 99 ~ ± 9 .9 9 9 9 9 9 9 x 1 0 99 a n d 0
N o t e : W h e n th e a b s o lu te v a lu e o f a c a lc u la tio n in less th a n 1 x 1 0 ~ 9 9 , th e c a lc u la to r
assum es th e v a lu e is 0.
•
S c ie n t if ic a n d s p e c ia l f u n c tio n s :
F u n c tio n s
D y n a m ic range
s in
x
D E G :
l x
I <
1 x 1 0 10
co s
X
ta n
x
R A D :
G R A D :
\ x
I <
l x
I <
_JL_ x 1 0 10
1 8 0 x
lu
- 1 2 - X 1 0 10
8 2
8 3
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