Victor 920 Scientific Calculator Owner Manual

VICTOR
Owner s Guide
920 Compact Scientific Calculator
Before starting calculation, be sure to press the |ON/C| key and to confirm that
“0” is shown in the display.
Special care should be taken not to damage the unit by bending or dropping.
For example, do not carry it in your hip packet.
1. [OFF
STAT
2. [ONC
3. [2ndF|
DAG»
4. DRG
EG yg
* 5, | Пур_
sin-1
6. | sin | | cos
TAB
7. FE
| [tan |
THE KEYBOARD
в. [СЕ |
-+D.MS D
9.
# E
10. [In |
10 F
11. [log |
— ГВ
12. а |
13. Г
14.0 = |
EXP)
15. [EXP]
16.
3 GC
17. [7]
1x
18. |
19.0]
Ex
20.[) |
21. [0)-(9]
22. + |
23. x |
=+HEX
24. |
DEC
25.
x Ex
26. [x-M
gE 4
27. [ МА |
DATA CD
28.
29.
e
30. Ao
%
31. = |
'2ndF | [DRG»|
5. (hyp)
Power off key
When this key is depressed, the calculator is turned off.
Automatic Power - Off Function (A.P.O.)
This calculator is automatically turned off approximately 8
minutes after the last key operation to save the batteries.
Power on and clear/statistical calculation mode key
: Push this key to turn the calculator on.
It is ready for operation. When pushed during operation it
clears the calculator except for the memory.
: Statistical program will be activated.
When the calculator is set to the statistical calculation mode
through these keys the symbol appears and at the
same time the numerical values and calculation commands,
except for memory contents are cleared.
Meanwhile, in the statistical calculation mode the | ) |,
[x+M), [MR] and [ M+ | keys work as the[ n ],[ x ],[ S |
and keys, respectively.
And pushing these keys immediately after the key they
work as the | Ex |), | Ex), | © |and [CD | keys.
2nd function designation key
Degree / Radian / Grad selector /
angular unit conversion key
Used for calculation of trigonometric, inverse trigonometric
and coordinate conversion. The key changes the
angular mode.
Г” DEG — —» AD. ROT]
( Press )
Ex. DEG — GRAD : Depress the key twice.
“DEG” mode - Entries and answers are in decimal degrees.
“RAD” mode - Entries and answers are in radians.
“GRAD” mode - Entries and answers are in grads.
(100 g = 90° =>)
It converts the displayed number into the value of the next
angular mode.
[ DEG > RAD > GRAD > DEG |]
Hyperbolic / arc hyperbolic key
10.
11.
=
= ñ
i] = pe
+
6
|ТАВ |
—
—
2ndF
2ndF| | ex |
10 F
®
|2ndF|
"
Trigonometric / inverse trigonometric function key
Display format exchange / Tabulation key
: When a calculation result is displayed in the floating decimal
point system, pushing the key displays the result in the scientific
notation system.
Pushing the key once more displays the result back to
floating decimal point system again
: To specify the number of decimal digits in the calculation result.
Clear entry / Factorial key
: Used to clear an incorrectly entered number.
123| + |455| CE | 456| = | — 579.
: Calculates the factorial of the displayed number.
Factorial of n[ n! ] = n.(n-1).(n-2)....... 2.1
Degree / minute / second ++ Decimal degrees conversion /
hexadecimal number key
: To convert degree / minute / second to decimal degree and
vice versa
: Hexadecimal number “D” key
(effective only in hexadecimal number model - HEX mode)
Natural logarithm / antilogarithm and
hexadecimal number key
: Used to obtain the logarithm with the base e (e = 2.718281828)
: Calculates the antilogarithm with the base e of the
displayed number.
HEX mode
Hexadecimal number “E ” key.
Common logarithm / antilogarithm and
hexadecimal number key
: Used to obtain the logarithm with the base of 10.
: Calculates the antilogarithm with the base of 10.
: HEX mode
Hexadecimal number “ F ” key.
—rû
19. Real number enter / coordinate conversion key
This is used when the real parts of complex numbers are to
be inputted and when calling the real parts of calculation
results.
* This is used during coordinate conversions when the x
coordinate of the Rectangular coordinates ( x, y ) is input or
when the r of the polar coordinates ( r, 0 ) is input.
It is also used for calling the calculated values of x or 0.
l2ndF| | — re | : Converts rectangular coordinate into polar coordinate.
13. Imaginary number enter / coordinate conversion key
* This is used when the imaginary parts of complex numbers
are to be input and when calling the imaginary parts of the
calculation results.
* This is used during coordinate conversions when the y
coordinate of the Rectangular coordinates ( x, y ) is input or
when the 0 of the polar coordinates (r, 6 ) is input. It is also
used for calling the calculated values of y or 6.
[2ndF| |= ху’ : Converts polar coordinate into rectangular coordinate.
PLX
14. Rignt shift / complex number mode key
[=] :Example Key in Display
1.) 123456 | = || = | — 123.
45 — 12345.
2.) 5 EXP24| = || = | — 5.00
35 — 5.35
lendF| [cPLX| : Used to set the complex number mode.
T A
15. Enter exponent / Pi and hexadecimal number key
: To enter number in scientific notation.
l2ndF|| x | — : The constant x ( пл = 3.141592654 ) is entered.
[A] :HEX mode
Hexadecimal number “ A ” key.
| y* |1|*y | and hexadecimal number key
16. ra
: Raizes a number to a power
[2ndF)[*y | : Calculates the x th root of y.
: HEX mode
Hexadecimal number “ B ” key
17.
18.
19.
uc
[2ndF) (3)
| C |
1x
2 |
l2ndF | | 1/x |
CO
CO
2ndF) |} |
п xx
20. [) |
21.
22.
23.
24.
2ndF | |-HEX|
Square root / cube root and hexadecimal number key
: Calculates the square root of the number displayed.
: Calculates the cube root of the number displayed.
: HEX mode
Hexadecimal number “ C ” key
Square / reciprocal key
: Calculates a square of the number displayed.
: Calculates the reciprocal of the number displayed.
Open parenthesis / exchange key
: Used to open parenthesis.
: Used to exchange the number being displayed with the
number stored in the working register. ( x <> y)
Close parenthesis / statistical calculation key
: Used to close parenthesis.
* When the statistical mode is set
: Displays the number of samples entered. (nm)
: Used to obtain the sum of the date ( >x)
Number Keys
Used to enter numbers
Division / binary number mode key
: Depressed for division
: Used to set the binary system mode.
Converts the number displayed into the number in base 2.
Multiplication / octal number mode key
: Depressed for multiplication
: Used to set the octal system mode.
Converts the number displayed into the number in base 8.
Minus / hexadecimal number mode key
: Depressed for subtraction
: Used to set the hexadecimal system mode.
Converts the number displayed into the number in base16.
24.
25.
=HEX
[=]
|- |
[2ndF| |-+HEX
DEL
2ndF) |-+DEC]
х LA
26. [X-M]
27.
28.
29.
2ndF] | Ex?)
2ndF) [O |
[M+]
DATA
l2ndF| | CD |
Minus / hexadecimal number mode key
: Depressed for subtraction
: Used to set the hexadecimal system mode.
Converts the number displayed into the number in base16.
Plus / decimal number mode key
: Depressed for addition.
: Used to set decimal system mode (normal mode).
Converts the number displayed into the number in base10.
Memory-in / statistical calculation key
: Clears the number in the memory and then store the number
being displayed in the memory.
To clear the memory depress the [ON/C| key and then the
|x>M| key.
* When the statistical mode is set.
: Used to obtain the mean value of the data. (x)
: Used to obtain the sum of squares of data. ( > x?)
Recall memory / statistical calculation key
: Displays the contents of the memory. The contents of the
memory remain unchanged after this key operation.
* When the statistical mode is set.
: Used to obtain the standard deviation of the sample.
: Used to obtain the standard deviation of the population.
Memory plus / DATA CD key
: Used to add the number being displayed or calculated result
to the contents of the memory.
When subtracting a number from the memory, depress the
and keys in this order.
* When the statistical mode is set.
: Used to enter the data (numbers)
: Used to correct the mis-entry. (Delete function)
Change sign key
Changes the sign of the number displayed from a positive to
a negative or vice verse.
Example: 5 —> -5
30. [=] Decimal point / random number key
we : Example: 123— [1] 12] | e | El
0.7 —> [+ |
l2ndF| |RND : These keys are used to generate uniform random numbers from
0.0000 to 0.999
Note : Random number generation is not possible when
binary / octal / hexadecimal system mode is set.
%
31. | = | Equals / percent key
| = | : Completes four arithmetic calculations (+, —, X, =), *V y, y*
and complex number calculations.
l2ndF| | % | : Used for the percentage calculation and add-on / discount
calculation.
DISPLAY
(1) Display format
4 (2345 Е 7891 | noo as нота нову
Y 234 E Б 7 8 . ( Scientific notation system )
| | | —
Mantissa Exponent
88 8 m © US
E
5 8 8 © E
8
>
: Minus symbol
Indicates that the number in the display following the “=” is a negative.
: Memory symbol
Appears when a number is stored in the memory.
: Error Symbol
Appears when a overflow or an error is detected.
: 2nd function designation symbol
Appears when the 2nd function is designated.
: Hyperbolic function designation symbol
Appears when hyperbolic function is designated.
: Degree mode symbol
Appears when the degree mode is designated or shows that angular
mode of the converted result is in degree.
: Radian mode symbol
Appears when the radian mode is designated or shows that the
angular mode of the converted result is in radian.
: Grad mode symbol
Appears when the grad mode is designated or shows that the
angular mode of the converted result is in grad.
: Parenthesis symbol
Appears when a calculation with parenthesis is performed by
depressing the [_(_] key.
: Appears when the binary system mode is set or shows the displayed
number is a binary number.
: Appears when the octal system mode is set or shows the displayed
number is an octal number.
: Appears when the hexadecimal system mode is set or shows the
displayed number is a hexadecimal number.
: Appears when the complex number mode is set.
: Appears when the statistical calculation mode is set.
(3) Display system
This machine displays a calculation result (x), if it is within the following range, in
the floating decimal point system.
0.000000001 < 1 x 1 < 9999999999
And otherwise the machine displays ” x ” in the scientific notation system.
However a calculation result within in the above range is also capable of being
display in the scientific notation system by pressing the key .
Example: [2ndF||TAB|
e Js +]J9[=) > 0.055555556
(The 10th decimal place is rounded.)
FE — 5.5555555-02
(The 10th decimal place of the mantissa is rounded)
— 0.055555556
ondF| | TAB|| * | — 0.055555555
This is determined by the calculator in the form of 5.55555555556 x 10°.
Rounding the 11 th digit of the mantissa results in 5.55555555556 x10.
When changed to the floating decimal display, the rounded parts may not be
displayed as in this example.
BATTERY REPLACEMENT
If the displayed becomes dark or dim, replace the battery with new ones
according to the following procedure.
Battery: L1131 x 1 (or equivalent)
Turn off the calculator.
Remove the battery cover.
Replace the battery. (+ side must be up)
Replace the battery cover.
After the replacement, press “ RESET * to clear the calculator. When the
battery are correctly installed “DEG 0” will be displayed. (if the display
shows nothing or a meaningless symbol or the keys become inoperative,
remove the battery and install them again.)
Press “ RESET ” and check the display again.
AUN —A
Note:
* wipe off the surface of the new battery with cloth and then install the battery.
* Subject to change without notice