Accuracy And Capacity - Citizen SR-281N Instruction Manual

4) Type A functions which are required entering values before
pressing the function key, for example, x
ENG, , , x ', y ' .
y
5) x ,
X
6) Type B functions which are required pressing the function key
before entering, for example, sin, cos, tan, sin
–1 –1
sinh, cosh, tanh, sinh , cosh , tanh
X X
, 10 , e , NOT, EXP, DATA in STAT mode.
3
7) + /– , NEG
8) nPr, nCr
9) x ,
10) +, –
11) AND, NAND –-- only Base–n mode
12) OR, XOR, XNOR --- only Base–n mode

Accuracy and Capacity

Output digits : Up to 12 digits.
Calculating digits : Up to 14 digits
In general, every reasonable calculation is displayed up to 12 digits
mantissa, or 12-digits mantissa plus 2-digits exponent up to 10
Numbers used as input must be within the range of the given function
as follow :
Functions Input range
sin x < 4.5 x 10
x
Deg :
cos x
< 2.5 x 10
x
Rad :
tan x
< 5 x 10
x
Grad :
however, for tan x
x
Deg : ≠ 90 (2n+1)
π
x
Rad : ≠
2
x
Grad : ≠ 100 (2n+1), (n is an integer)
–1 –1 x
≦ 1
sin x, cos x
< 1 x 10 100
–1 x
tan x
x
≦ 230.2585092
sinh x, cosh x
< 1 x 10 100
x
tanh x
99
–1 x < 5 x 10
sinh x
–1
x < 5 x 10 99
cosh x 1 ≦
-E7-
File name : CBM_SR-281N_IB_English_black_v09330.doc
Date: 2009/3/30 Trimmed Size : 140 x 75 mm
2
,1/x, π, x!, %, RND,
–1 –1 –1
, cos , tan ,
–1
, log, ln, FRAC, INT, √,
± 99
.
10
deg
8
πrad
10
grad
(2n+1)
SCALE 1 : 1