Calculation Range; Arithmetic Calculation; Function Calculation - Sharp EL-9900 Operation Manual

6. Calculation Range

1. Arithmetic calculation

The results for dividend, multiplicand and operand are:
×
-
1 10 100
(valid within the range of display capability)
Note:

2. Function calculation

Calculation accuracy
In principle, calculation errors are ±1 of the last digit. (In case of exponential
display, the calculation errors are ±1 of the last digit of the mantissa display.)
However, a calculation error increases in continuous calculations due to
accumulation of each calculation error. (This is the same for a
where continuous calculations are performed internally.)
Additionally, a calculation error will accumulate and become larger in the
vicinity of inflection points and singular points of functions. (for example,
calculating sinh X or tanh X at X = 0)
Function
DEG
RAD
sin x
GRAD
cos x
However, the following are excluded for tan x
tan x
DEG
RAD
GRAD
-
1
sin x
1 ≤ x ≤ 1
-
-
1
cos x
-
1
tan x |x| < 1
sinh x
230.2585093 ≤ x ≤ 230.2585092
-
cosh x
tanh x
-
1
sinh x |x| < 1
1 ≤ x ≤ 1
-
cosh 1 x
-
1
tanh x |x| < 1
×
< x ≤
-
-
1 10 99 , 1
Calculation results and input values less than 1
considered equal to 0.
Calculation range
×
10
: |x| < 1 10
π
×
10
: |x| < 10
180
10
×
: |x| < 10 10
9
–
: |x| = 90 (2n 1)
π
–
: |x| = (2n 1)
2
–
: |x| = 100 (2n
×
100
10
×
50
10
×
50
10
× ×
< x ≤ 1
-
10 99 10
1)
100 or x = 0
×
-
10 99
a
b , , n!,
b
Notes
"n" is an integer
Appendix
are
x
e
, In, etc.
241