Sharp EL-5230, Operation Manual

Page: 126 / 132

124
Appendix
Technical Data
Calculation ranges
• Within the ranges specified, the calculator is accurate to ±1 of the
least significant digit of the mantissa. However, in continuous
calculations the calculation error increases due to the
accumulation of each successive calculation error. (This is the
same for
y x ,
x
, n!, e x , In etc., where continuous calculations are
performed internally.)
• Furthermore, the calculation error will accumulate and become
larger in the vicinity of inflection points and singular points of
functions, and in programmed repetitive calculations.
• Calculation ranges
±10
-99
to ±9.999999999 × 10
99
and 0.
If the absolute value of an entry or a final or intermediate result of a
calculation is less than 10
-99 , the value is considered to be 0 in calculations
and on the display.
Function Dynamic range
DEG: | x | < 10
10
(tan x : | x | 90 (2n–1))*
sin x , cos x ,
RAD: |
x
| < —–
×
10 10
tan
x
(tan
x
: |
x
| — (2n–1))*
GRAD: |
x
| < —–
×
10 10
(tan x : | x | 100 (2n–1))*
sin
–1
x , cos
–1
x | x |
≤
1
tan –1
x
, 3
x
|
x
| < 10 100
In x , log x 10
–99
≤
x < 10
100
•
y
> 0: –10 100 <
x
log
y
< 100
• y = 0: 0 < x < 10
100
yx • y < 0: x = n
(0 < l
x
l < 1: — = 2n–1,
x
/
=
0)*,
–10
100
< x log | y | < 100
•
y
> 0: –10 100 < — log
y
< 100 (
x
/
=
0)
• y = 0: 0 < x < 10
100
x y
• y < 0: x = 2n–1
(0 < | x | < 1 : — = n, x
/
=
0)*,
–10 100 < — log |
y
| < 100
π
180
π
2
10
9
1
x
1
x
1
x
1
x
√
=
/
=
/
=
/
√
__