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 first 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 floating decimal point or scientific 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 floating
decimal point.
E.g.
[TAB][3]
displays values with 3 decimals.
[TAB][.]
displays values with floating 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]
Scientific notation
Press to enter values directly in scientific 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 first, 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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