Sharp EL-5250 User Manual
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
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.
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
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
2
10
9
1
x
1
x
1
x
1
x
√
=
/
=
/
=
/
√
__