Citizen SRP-285N: Before starting calculation
Before starting calculation: Citizen SRP-285N
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File name : CBM_SR285,A_HDBSR285T19_English.doc
version : 2010/04/26
There are digits to the left or right of the display
There are earlier or later results that can be displayed
Before starting calculation
Changing a mode
Pressing [ MODE ] can enter mode menus. You can choose one of
six operating modes, including "
0) MAIN
", "
1)STAT
", "
2)Base-n
",
"
3)CPLX
", "
4)VLE
", "
5)QE
".
Give "
2)Base-n
" as an example :
Method 1 : Scroll through the menus using [ ] or [ ] until "
2)Base-n " is shown, then enter the desired mode by
pressing [
].
Method 2 : Key in directly the number of the mode, [ 2 ] , to enter
the desired mode immediately.
Selecting an item from display menus
Many functions and settings are available on menus. A menu is a list
of options displayed across the entry line.
Give " Pressing [ DRG ] key displays the menu for choosing the
angle setting under MAIN mode " as an example :
Method : Press [ DRG ] to display the menu, and then move the
cursor [ ] or [ ] to an item you want. Press [
]
while the item is underlined.
For menu items followed by an argument value, you can press
[
] while the item is underlined or enter directly the
corresponding argument value.
Using " 2nd " Keys
When you press [ 2nd ], the "
2nd
" indicator shown in the display is
to tell you that you will be selecting the second function of the next
key you press. If you press [ 2nd ] by mistake, simply press [ 2nd ]
again to remove the "
2nd
" indicator.
Cursor
Pressing [ ] or [ ] key can move the cursor to the left or the right.
Hold down any of those keys to move the cursor at high speed.
Pressing [ ] or [ ] can scroll the display up or down while there
are previous entries hidden the display. You can reuse or edit a
previous entry when it is on the entry line.
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File name : CBM_SR285,A_HDBSR285T19_English.doc
version : 2010/04/26
Making corrections during input
To delete a character at the cursor, make the character underlined
by using [ ] or [ ] to move the cursor, and then press [ DEL ] to
delete the character.
To replace a character, make the character underlined by using [ ]
or [ ] to move the cursor, and then enter a new entry to replace the
character.
To insert a character, move the cursor to the position of the
character where you want to insert, it will be inserted in the front of
the character after pressing [ 2nd ] [ INS ] and entering a new
character.
(Note) : The blinking cursor " " means the calculator is in insert
mode. On the contrary, the blinking cursor is displayed
as "
_
" and it means the calculator is in overwrite mode.
To clear all characters, clear all input character by [ CL ] key.
Replay function
z
This function stores the latest operation executed. After execution
is complete, pressing [ ] or [ ] key will display the operation
from the beginning or the end. You can continue moving the
cursor by [ ] or [ ] to edit it. To delete a digit, press [ DEL ]. ( or,
in overwrite mode, just type over the digit). See Example 1.
z
The replay function can keep input digits up to 254 characters.
After execution is complete or during entering, you can press
either [ ] or [ ] to display previous input steps and edit values
or commands for subsequent execution. See Example 2.
(Note) : The replay function isn't cleared even when [ CL ] is
pressed or power is turned off, so contents can be
recalled even after [ CL ] is pressed. However, replay
function is cleared when mode or operation is switched.
Error Position Display Function
z
When a mathematically illegal calculation is performed, error
position display function will tell you with the cursor where the
error is. Press [ ] or [ ] to move the cursor and then give it a
correct entry. You can also clear an error by pressing [ CL ] and
then re-entered the values and expression from the beginning.
See Example 3.
Memory Calculation
z
Press [ M+ ] to add a result to running memory. Press [ 2nd ] [ M– ]
to subtract the value from running memory. To recall the value in
running memory, press [ MRC ]. To clear running memory, press
[ MRC ] twice. See Example 4.
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File name : CBM_SR285,A_HDBSR285T19_English.doc
version : 2010/04/26
z
The calculator has ten memory variables for repeated use :
A, B,
C, X, Y, M, X1, X2, PROG1
and
PROG2
. You can store a real
number in variables
A, B, C, X, Y, M, X1, X2
and an expression in
PROG1
and
PROG2
. See Example 5.
* [ P/V RCL ] recalls all variables.
* [ SAVE ] lets you store values to variables.
* [ 2nd ] [ RECALL ] recalls the value of variable.
* [ 2nd ] [ CL-VAR ] clears all variables except
PROG1
,
PROG2
.
* [ 2nd ] [ CL-PROG ] clears the contents of
PROG1
,
PROG2
.
(Note) : Besides pressing [ SAVE ] key to store a value, you can
also assign values to memory variable
M
by [ M+ ] or
[ 2nd ] [ M– ]. However, anything currently stored in
variable
M
will be deleted and replaced by the newly
assigned value.
Order Of Operations
Each calculation is performed in the following order of precedence :
1) Expression inside parentheses.
2) Coordinates transformation, and 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, 10
X
, e
X
,
√
, NEG, NOT, X'( ), Y'( )
3) Type A functions which are required entering values before
pressing the function key, for example, x
2
,
, ! , x
–1
, %, r,
g.
4) Exponentiation ( ^ ),
X
5) Fractions
6) Abbreviated multiplication format in front of variables,
π
,
RANDM, RANDMI.
7) ( – )
8) Abbreviated multiplication format in the front of Type B
functions, 2
3
, Alog2, etc.
9) nPr,
nCr
10) x ,
11) +, –
12) AND, NAND
13) OR, XOR, XNOR
14) Conversion( a
b
/
c
d
/
e
, F
D, DMS )
• When functions with the same priority are used in series,
execution is performed from right to left.
e
X
ln120
Æ
e
X
{ ln (120 ) }
otherwise, execution is from left to right.
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File name : CBM_SR285,A_HDBSR285T19_English.doc
version : 2010/04/26
• Compound functions are executed from right to left.
• Anything contained within parentheses receives the
highest priority.
Accuracy And Capacity
Output digits : Up to 10 digits
Calculating digits : Up to 24 digits
In general, every reasonable calculation is displayed up to 10 digits
mantissa, or 10-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
log x, ln x
1 x 10
–99
≤
x
<
1 x 10
100
10
x
–1 x 10
100
<
x
<
100
e
x
–1 x 10
100
<
x
≤
230.2585092
x
0
≤
x
<
1 x 10
100
x
2
x
<
1 x 10
50
x
-1
x
<
1 x 10
100
, x
≠
0
x !
0
≤
x
≤
69, x is an integer.
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File name : CBM_SR285,A_HDBSR285T19_English.doc
version : 2010/04/26
P (x, y)
2
2
y
+
x
<
1 x 10
100
R (r,
θ
)
0
≤
r
<
1 x 10
100
Deg
:│θ│
<
4.5 x 10
10
deg
Rad
:│θ│
<
2.5 x 10
8
π
rad
Grad
:│θ│
<
5 x 10
10
grad
however, for tan
θ
Deg
:│θ│≠
90 (2n+1)
Rad
:│θ│≠
2
π
(2n+1)
Grad
:│θ│≠
100 (2n+1), (n is an integer)
DMS
│
DD
│
, MM, SS.SS
<
1 x 10
100
,
0
≤
MM, SS.SS
x
<
10
100
x
y
x
>
0 : –1 x 10
100
<
y log x
<
100
x = 0 : y
>
0
x
<
0 : y = n, 1/(2n+1), n is an integer.
but –1 x 10
100
<
y log
⏐
x
⏐
<
100
x
y
y
>
0 : x
≠
0, –1 x 10
100
<
x
1
log y
<
100
y = 0 : x
>
0
y
<
0 : x = 2n+1, 1/n, n is an integer. (n
≠
0)
but –1 x 10
100
<
x
1
log
⏐
y
⏐
<
100
nPr, nCr
0
≤
r
≤
n, n
≤
10
100
, n,r are integers.
STAT
x
<
1 x 10
100
,
y
<
1 x 10
100
1–VAR : n
≤
40, 2–VAR : n
≤
40
FREQ. = n, 0
≤
n
<
10
100
: n is an integer in
1–VAR mode.
σ
x,
σ
y,
x
,
y
,a, b, r : n
≠
0 ;
Sx, Sy
:
n, n
≠
0, 1
E – 10
File name : CBM_SR285,A_HDBSR285T19_English.doc
version : 2010/04/26
Base–n
DEC
:
– 2147483648
≤
x
≤
2147483647
BIN
:
10000000000000000000000000000000
≤
x
≤
11111111111111111111111111111111 (for negative)
0
≤
x
≤
01111111111111111111111111111111
(for zero, positive)
OCT
:
20000000000
≤
x
≤
37777777777(for negative)
0
≤
x
≤
17777777777 (for zero or positive)
HEX
:
80000000
≤
x
≤
FFFFFFFF (for negative)
0
≤
x
≤
7FFFFFFF ( for zero or positive)
Error Conditions
Error message will appear on the display and further calculation
becomes impossible when any of the following conditions occur.
DOMAIN Er
(1) When specifying an argument to a function
outside the valid range.
(2)
FREQ
value (in
1–VAR
stats) < 0 or
non-integer.
(3) When USL value < LSL value
DIVIDE BY 0
You attempted to divide by 0.
OVERFLOW Er
When result of function calculations exceeds
the range specified.
STAT Er
When in MAIN, CPLX, VLE, or QE mode, press
[ DATA ] or [ STATVAR ].
SYNTAX Er
(1) Input errors are made.
(2) When improper arguments are used in
commands or functions that require
arguments.
NO SOL
MULTI SOLS
There is no solution or infinite to the
simultaneous equation under VLE mode.
NO REAL SOL
There is no real solution to quadratic equation
under QE mode.
LENGTH Er
An entry exceeds 84 digits after implied
multiplication with auto-correction.
OUT OF SPEC
You input a negative C
PU
or C
PL
value, where
σ
3
X
–
USL
=
C
PU
,
σ
3
LSL
–
X
=
C
PL
To release the above errors, please press [ CL ] key.
Оглавление
- General Guide
- Before starting calculation
- Mode 0 - MAIN
- Mode 1 - STAT
- Mode 2 - Base-n
- Mode 3 - CPLX
- Guía GeneraI
- Antes de empezar los cálculos
- Mode 0 - MAIN
- Mode 1 - STAT
- Mode 2 - Base-n
- Mode 3 - CPLX
- Guia Geral
- Antes de começar cálculos
- Mode 0 - MAIN
- Mode 1 - STAT
- Mode 2 - Base-n
- Mode 3 - CPLX
- Allgemeine Hinweise
- Vor dem Rechnen
- Mode 0 - MAIN
- Mode 1 - STAT
- Mode 2 - Base-n
- Mode 3 - CPLX
- Guide Général
- Avant de Commencer le Calcul
- Mode 0 - MAIN
- Mode 1 - STAT
- Mode 2 - Base-n
- Mode 3 - CPLX
- Guida Generale
- Prima di iniziare i calcoli
- Modalità 0- MAIN.
- Modalità 1 - STATISTICHE
- Modalità 2 - Base-n
- Modalità 3 - CPLX
- Algemene inleiding
- Modus 0 - MAIN
- Modus 1 - STAT
- Modus 2 - Base-n
- Modus 3 - CPLX
- Generel vejledning
- Inden du går i gang med at foretage beregninger
- Mode 0 - MAIN
- Mode 1 - STAT
- Mode 2 - Base-n
- Mode 3 - CPLX
- Основное руководство
- Перед началом вычислений
- Mode 0 - MAIN
- Mode 1 - STAT
- Mode 2 - Base-n
- Mode 3 - CPLX
- Instrukcja Obs ł ugi
- Przed u ż yciem
- Mode 0 - MAIN
- Mode 1 - STAT
- Mode 2 - Base-n
- Mode 3 - CPLX
- Mode 5 - QE
- Petunjuk Umum
- Sebelum mulai menghitung
- Mode 0 - MAIN
- Mode 1 - STAT
- Mode 2 - Base-n
- Mode 3 - CPLX
- Mode 5 - QE
- 一般操作說明
- 使用前說明
- 操作模式 0 - MAIN
- 操作模式 1 - STAT
- 操作模式 2 - Base-n
- 操作模式 4 - VLE

