Clas Ohlson Kc-156 User Manual

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Brand: Clas Ohlson

Category: Calculator

Type: Operation & user’s manual for Clas Ohlson Kc-156

Pages: 8

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Scientific calculator Art.no: 32-6972 • Model: Kc-156
No special training is needed to fully exploit the calculator’s potential but it
is recommended that you read through this manual to get acquainted with
all functions.
Read the manual carefully and save it for future use.
Do not expose the calculator for violent impact or extreme temperature and
do not press hard on the keys.
Always press the [ON/C] key and make sure that the display shows “0”
before you begin calculations.
Keyboard
1. [OFF] Off switch
The calculator is switched off when the key is pressed.
2.
[ON/C] On switch
Press to switch on calculator when it is turned off.
Resets the calculator in an arithmetical operation but what is saved in the
memory is not erased.
[2ndF][STAT] Activates statistics program
When you rst press the [2ndF] key and then [ON/C] (STAT) the calculator’s
statistics mode is activated and the display shows [STAT]. Simultaneously
all values and arithmetic commands are erased, except what is saved in the
memory.
In statistics mode the keys change functions: [)], [X→M], [MR] and [M+] to [n],
[
x
], [S] and [DATA], respectively.
If you press these keys immediately after pressing [2ndF] they change
functions to [Σx], [Σx²], [σ] and [CD], respectively.
3.
[=] Equal sign
Press to complete four arithmetic calculations (+, -, x and ÷),
x
√y, y
x
and
complex number calculations.
[2ndF][%] Percent
Used in percent calculations and interest- / sale-calculations.
E.g. “80 with 20% sale” → [8][0][-][2][0][2ndF][%][=]
E.g. “100 with 5% interest over 3 years” → [1][0][0][+][5][2ndF][%][+][5][2ndF
][%][+][5][2ndF][%][=]
4.
[DRG] Shift angular units between: Degrees/Radians/Grad
Used in trigonometric/inverted trigonometric calculations and in coordinate
transformation. Press [DRG] key to shift angular setting.
E.g. DEG → GRAD: Press [DRG] twice.
“DEG” setting: Input and answer in decimal degrees
“RAD” setting: Input and answer in radians
“GRAD” setting: Input and answer in gon (100
g
= 90° = π/2)
[2ndF] [DRG►] Changes displayed value to the next angular setting
[ DEG → RAD → GRAD → DEG]
5.
[hyp] Hyperbolic arc
Used in calculation of hyperbolic versions of trigonometric functions.
E.g. “sinh 2” → [2][hyp][sin]
[2ndF] [arc hyp] Archyperbolic arc
Used in calculation of archyperbolic versions of trigonometric functions.
E.g. “arcsin 2” → [2][2ndF] [arc hyp][sin]
6.
[sin], [cos], [tan] Trigonometric functions
E.g. “sin 30°” → [3][0][sin] (in DEG mode)
[2ndF][sin-1], [2ndF][cos-1], [2ndF][tan-1] Inverted trigonometric functions
E.g. “sin
-1
0,5” → [0][.][5] [2ndF][sin-1] (in DEG mode)
7.
[F↔E] Shift display mode
Press to shift between displaying oating decimal point or scientic notation
when the answer of an arithmetic operation is displayed.
[2ndF][TAB] Number of decimals
Press to set desired number of displayed decimals. Use the [.] key for oating
decimal point.
E.g. [TAB][3] displays values with 3 decimals.
[TAB][.] displays values with oating decimal point (standard display).
8.
[CE] Clears latest input
E.g. 123 [+] 455 [CE] 456 [=] → 579 (change 455 into 456)
[2ndF][n!] Factorial
Calculate factorial for the displayed number. Factorial of n [n!] = n*(n-1)*(n-
2)……2*1
E.g. “6!” → [6][2ndF][n!]
9.
[→DEG] Degrees/minutes/seconds to degrees
Press to convert from values in degrees/minutes/seconds to decimal degrees.
E.g. “1°23”45’” → [1][.][2][3][4][5][→DEG]
[D] Hexadecimal “D” key (only in hexadecimal mode)
[2ndF][→ D.MS] Degrees to degrees/minutes/seconds
Press to convert from values in decimal degrees to degrees/minutes/seconds.
E.g. “1,23°” → [1][.][2][3] [2ndF][→D.MS]
10.
[ln] Natural logarithm
Calculate logarithm with base e (e=2,718281828) for the displayed number.
E.g. “ln 10” → [1][0][ln]
[E] Hexadecimal “E” key (only in hexadecimal mode)
[2ndF][e
x
] Natural exponent function
Calculate natural exponent for the displayed number.
E.g. “e
4
” → [4][2ndF][e
x
]
11.
[log] Logarithm with base 10
Calculate logarithm with base 10 for the displayed number.
E.g. “log 10” → [1][0][log]
[F] Hexadecimal “F” key (only in hexadecimal mode)
[2ndF][10
x
] Exponential function with base 10
Calculate exponential function with base 10 for the displayed number.
E.g. “10
4
” → [1][0][2ndF][10
x
]
12.
[a] Input of real number
Used to input the real part of a complex number and for displaying the real
part of a complex result. Used for conversion of coordinates when either x in
Cartesian coordinate system (x,y) or r in polar coordinate system (r, θ) are
indata. Also displays calculated values for x or r.
[2ndF][→ rθ] Cartesian to polar
Converts complex numbers from Cartesian coordinate system (x,y) to polar
coordinate system (r, θ).
13.
[b] Input of imaginary number
Used for input of imaginary part of a complex number and for displaying the
imaginary part of complex result. Used for conversion of coordinates when
either y in Cartesian coordinate system (x,y) or θ in polar coordinate system (r,
θ) are indata. Also displays calculated values for y or θ.
E.g. “2-3i” → [2][a][3][+/-][b]
[2ndF][→ xy] Polar to Cartesian
Converts complex numbers from polar coordinate system (r, θ) to Cartesian
coordinate system (x,y).
14.
[→] Right shift
Removes latest input number.
E.g. [1][2][3][4][5][6] (displays 123456), [→][→] (displays 1234),
[7][8] (displays 123478)
[2ndF][CPLX] Complex number mode
When you press the keys the calculator’s complex number mode is activated
and [CPLX] is shown on the display. Simultaneously all values and arithmetic
commands are erased, except what is saved in the memory. Use keys [a] and
[b] to enter values and display them.
15.
[EXP] Scientic notation
Press to enter values directly in scientic notation.
[A] Hexadecimal “A” key (only in hexadecimal mode)
[2ndF][π] Pi
Input constant value π (π = 3,141592654).
16.
[y
x
] Exponential function with arbitrary base
Enter base rst, press [y
x
] and enter exponent.
E.g. “3
4
” → [3][y
x
][4][=]
[B] Hexadecimal “B” key (only in hexadecimal mode)
[2ndF][
x
√y] Arbitrary root
Calculate xth root of number y.
E.g. “
4
√16” → [1][6] [2ndF][
x
√y][4][=]
17.
[√] Square root
E.g. “√16” → [1][6] [√]
[C] Hexadecimal “C” key (only in hexadecimal mode)
[2ndF][
3
√] Cubic root
E.g. “
3
√8” → [8][2ndF][
3
√]
18.
[x
2
] Squared value
E.g. “3
2
” → [3][x
2
]
[2ndF][
1
/
x
] Reciprocal value
E.g. “
1
/
23
” → [2][3][
1
/
x
]
19.
[(] Open parenthesis
Press to begin a calculation within parenthesis. See also “Close parenthesis”.
You may use parentheses to enforce desired order within a calculation. N.B.
You may use no more than 4 nested parentheses in a calculation.
E.g. “1+2(3+4)” → [1][+][2][*][(][3][+][4][)][=]
[2ndF][
] Change values
Press to change the displayed number to the number saved in current register.
(x ↔ y) Current register contains result from previous calculation.
E.g. “1+2*3” → [1][+][2][*][3][=] (displays “7”, saves “6” in current register)
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