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Citizen SR-282 [3/16] Accuracy and capacity
![Citizen SR-282 [3/16] Accuracy and capacity](/views2/1012170/page3/bg3.png)
3 / 3
DEG
B=
[ RCL ] [ B ] [ ]
0 .
Running memory
You should keep the following rules in mind when using running
memory.
• Press [ M+ ] to add a result to running memory and the " M "
indicator appears when a number is stored in the memory. Press
[ MR ] to recall the content of running memory.
• Recalling from running memory by pressing [ MR ] key does not
affect its contents .
• Running memory is not available when you are in statistics mode.
• The memory variable M and running memory utilize the same
memory area.
• In order to replace the content of the memory with the displayed
number, please press [ X M ] key.
• To clear the content of running memory, you can press [ 0 ] [ X M ],
[ CE ] [ X M ] or [ 0 ] [ STO ] [ M ] in sequence.
[ ( 3 x 5 ) + ( 56
÷
7 ) + ( 74 – 8 x 7 ) ] = 41
DEG
0 [ X M ]
0 .
DEG
74–8¼ 7M+
3 [ x ] 5 [ M+ ] 56 [
÷
] 7 [ M+ ] 74
[ – ] 8 [ x ] 7 [ M+ ]
M
18.
DEG
M
[ MR ]
M
41.
DEG
0 [ X M ]
0 .
(Note) : Besides pressing [ STO ] or [ X M ] key to store a value, you
can also assign values to memory variable M by [ M+ ].
However, when [ STO ] [ M ] or [ X M ] is used, previous
memory contents stored in variable M are cleared and
replaced it with the newly assigned value. When [ M+ ] is
used, values is added to present sum in memory.
Order of operations
Each calculation is performed in the following order of precedence:
1) Fractions
2) Expression inside parentheses.
3) Coordinates transformation ( P R , R P )
4) Type A functions which are required entering values before
pressing the function key, for example, x
2
,1/x,
π
, x!, %, RND,
ENG, , , x ', y ' .
5) x
y
,
X
6) Type B functions which are required pressing the function key
before entering, for example, sin, cos, tan, sin
–1
, cos
–1
, tan
–1
,
sinh, cosh, tanh, sinh
–1
, cosh
–1
, tanh
–1
, log, ln, FRAC, INT,
√
_
,
3
, 10
X
, e
X
, NOT, EXP, DATA in STAT mode.
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
± 99
.
Numbers used as input must be within the range of the given function
as follow :
Functions
Input range
sin x
cos x
tan x
Deg :
x
<
4.5 x 10
10
deg
Rad :
x
<
2.5 x 10
8
π
rad
Grad :
x
<
5 x 10
10
grad
however, for tan x
Deg :
x
≠
90 (2n+1)
Rad :
x
≠
2
π
(2n+1)
Grad :
x
≠
100 (2n+1), (n is an integer)
sin
–1
x, cos
–1
x x
≦
1
tan
–1
x
x
<
1 x 10
100
sinh x, cosh x
x
≦
230.2585092
tanh x
x
<
1 x 10
100
sinh
–1
x
x
<
5 x 10
99
cosh
–1
x
1
≦ x < 5 x 10
99
tanh
–1
x
x
<
1
Содержание
- Auto power off function 1
- Battery replacement 1
- Contrast adjustment 1
- Display readout 1
- General guide 1
- Reset operation 1
- Scientific calculator 1
- Sr 281 sr 282 1
- Turning on or off 1
- Before starting calculation 2
- Corrections 2
- Memory calculation 2
- Replay function 2
- Undo function 2
- Using 2nd keys 2
- Using mode keys 2
- Accuracy and capacity 3
- Order of operations 3
- Arithmetic calculation 4
- Basic calculations 4
- Error conditions 4
- Display notations 5
- Parentheses calculations 5
- Percentage calculation 5
- 0 5714285714 6
- 100 06737947 6
- 8 22 7 5 14 3 2 7 6
- 9 5 4 2 1 4 4 2 4 6
- And 2nd e 6
- D e the displayed value will be converted to the improper fraction and vice versa to convert between a decimal and fractional result press a b c 6
- Display of 6
- Display of 5 6
- During a fraction calculation if the figure is reducible a figure is reduced to the lowest terms after pressing a function command key x or 6
- Each time you specify the eng mode a displayed result is automatically shown with the corresponding engineering symbol 6
- Engineering symbol notation 6
- Fraction calculation 6
- Fraction value display is as follow 6
- Key by pressing 2nd 6
- Ln 7 log 100 3 4591014906 6
- Logarithms and antilogarithms 6
- Mode 5 eng 6
- Note values are automatically displayed in decimal format whenever the total number of digits of a fractional values integer numerator denominator separator marks exceeds 12 to enter a mixed number enter the integer part press a b c enter the numerator press a b c and enter the denominator to enter an improper fraction enter the numerator press a b c and enter the denominator 6
- Or the 6
- Perform the following operation to specify engineering symbol notation 6
- Scientific functional calculations 6
- The calculator can calculate common and natural logarithms and anti logarithms using log ln 2nd 10 6
- To exit from this mode press mode 5 once again 6
- Use main mode 1 main mode for scientific function calculations 6
- Angle unit conversions 7
- Hyperbolic inverse hyp functions 7
- Sexagesimal decimal transformation 7
- Trigonometric inverse tri functions 7
- Coordinates transformation 8
- Int frac 8
- Other functions 1 x 8
- Probability 8
- Physics constants 9
- Unit conversion 9
- 1 0664259841 x 10 11
- Or 2nd 11
- Press const to display the physics constants menu 2 press 11
- To insert a constant at the cursor position 11
- Until the constant you want is underlined 3 press 11
- You also can use the const key in combination with a number 1 through 136 to recall a physical constants for example press 15 const 11
- Base n calculations 12
- Bases conversions 12
- Block function 12
- Basic arithmetic operations for bases 13
- Displaying results 13
- Entering data 13
- Logical operation 13
- Negative expressions 13
- Statistical calculations 13
- Deleting data 15
- Editing data 15
- Full message 15
- 7 9 i 15 12 i 22 3 i ab 22 036033112 ar 7 6516601843 16
- Ab absolute value ar argument value 16
- Cbm bldg 5 68 10 nakano nakano ku tokyo 164 0001 japan tel 3 5345 7430 fax 3 5345 7431 citizen is a registered trademark of citizen watch co japan 16
- Clear the indicator the previous data entries are still retained unless you exit stat mode 16
- Complex calculations 16
- Complex mode enables you to add subtract multiply and divide complex numbers 16
- If the times of data entry by data is more than 50 16
- N 12750 appears when the times of data entry by data are up to 50 and the number of repeats for each value are all 255 i e 12750 50 x 255 16
- Re real value im imaginary value 16
- The number of repeats is more than 255 16
- The results of a complex operation are displayed as follow 16
- The unit complies with the requirements of directive 89 336 eec as amended by 93 68 eec 16
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