Technical data, Calculation ranges – Sharp EL-5230 User Manual
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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
√
=
/
=
/
=
/
√
__