Sharp PC-1403

4 3
For th e a c c uracy o f fu n ct i ons o t her t ha n shown a b o v e , t he e r ror is ± 1 at the 10 th digit,
a s a r u le . ( In th e sc i enti f i c no t ation s y st e m , t he e rr or is ± 1 a t the lo w e s t d i g i t of
man t i ssa d isp l ay . )
How ever, the acc u racy wil l be co me l ow aroun d s i ngu lar poin t s and i n flectio n p o i n ts o f
f un ct i on s .
T herefor e , err o r s a r e a c cu m u l ate d i n ea c h stage o f t he con t i nuous ca l c ul atio n s,
causi ng the acc u racy t o de t er io r a te . ( T he sa m e a pp lies to other co n ti nu ous c al c ul a -
tio n s m ade by t he comp ut er su c h a s y and \YY. )
F un c t i o n s
D y n a m i c r a n g e
N ot e
n f 0
0 < I (E x' - n X2) · ( E y' - n.) 1 ' ) I < 1 x 10 1 0 0
I l:x y -
Ex · E y
I < 1 x 1 o =
n
r
E x· Ey
>.;x y -
n
. ·· · · ·· ----- -· -- - · - - · - -
<
1 x 1 0 10 0
J 1 >:.x 1 - n j- 2 · ) · (>:. y' - n }• ' l
n #-0
0 < I Ex ' - n x' I < 1 x 1 0 1 00
I >:. xy -
l'. X. >:. y
I < 1 x 1 0· · ·
St a t i stica l
b
n
ca l c ul ation
I
>:.xy -
I:X · l: y
I
n
< 1 x 1 0 1 0 0
Ex' - n x 2
a i s the s a me cond i t i o n a s b ,
and
a
1y-bx1 < 1 x 1 0 1 00
y I a + bx I < 1 x 10 10 0
x '
I y ~a I
< 1 x10 1 0 0
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