HP 9s User Manual

π
π
x
π
x
hp 9s
Scientific Calculator
General Operations
Power Supply
On or Off
To turn the calculator on, press [ON/C].
To turn the calculator off, press [2ndF] [OFF].
Auto power-off function
The calculator automatically turns off if it has not been used for approximately 9 minutes. Power can be restored by pressing the [ON/C] key again. Memory contents and the current mode setting (STAT, DEG, CPLX, Base-n,etc) are retained when you turn off the power and when the calculator automatically turns off.
Battery replacement
The calculator is powered by two alkaline button batteries (GP76A or LR44). If the display becomes dim and difficult to read, the batteries should be replaced as soon as possible.
To replace the batteries:
1. Slide the battery cover off and remove the old batteries.
2. Insert new batteries, with positive polarity facing outward.
3. Replace the battery cover and press [ON/C] to turn on the power.
The keyboard
Most of the keys can perform two functions.
2nd function
――――――
1st function
―――
1st functions
These are functions that are executed when you press a key without first pressing [ 2ndF ]. The function performed is indicated by the label on the key.
2nd functions
These are functions that are executed when you press a key after first pressing [ 2ndF ]. The function performed is indicated by the label above the key.
When you press [ 2ndF ], the 2ndF indicator appears in the display to indicate that you will be selecting the second function of the next key you press. If you press [ 2ndF ] by mistake, simply press [ 2ndF ] again to remove the 2ndF indicator.
Note: [ A ], [ B ], [ C ], [ D ], [ E ], [ F ] are 1st functions in HEX mode.
Display Symbols
The following symbols, shown on the display, indicate the status of the calculator.
DEG or RAD or GRAD: degrees, radians or grads angular unit M A value is in memory CPLX Complex number mode E Overflow or error STAT Statistical mode – Minus 2ndF [2ndF] key pressed ( ) Parentheses calculation CP Precision capability BIN Binary mode CPK Process capability OCT Octal mode σ D eviation HEX Hexadecimal mode USL Setting upper limit ED Edit mode LSL Setting lower limit HYP Hyperbolic mode
Display Formats
The calculator can display numbers in four formats: floating point, fixed point, scientific, and engineering.
Floating point format
The floating point format displays numbers in decimal form, using up to 10 digits. Any trailing zeros are truncated.
If the result of a calculation is too large to be represented by 10 digits, the display automatically switches to scientific format. If the result of a later calculation is small enough to be displayed in less than 10 digits, the calculator returns to floating point format.
To set the display to floating point display format:
4. Press [ 2ndF ] [ FIX ] [•]
Fixed point format
The fixed point, scientific, and engineering formats use a fixed number of decimal places to display numbers. If more than the specified number of decimal places is keyed, the entry will be rounded to the correct number of decimal places.
Ex. 1: Fix the display at 2 decimal places, then key in 3.256
1. Press [ 2ndF ] [ FIX ] 2
2. Key in 3.256 [
If fewer than the set number of decimal places is keyed, the entry will be padded with trailing zeros.
ENTER
]
Ex. 2: Fix the display at 4 decimal places, then key in 4.23
1. Press [ 2ndF ] [ FIX ] 4
2. Key in 4.23 [
ENTER
]
Scientific format
In scientific format, the number 891500 is shown as 8.915 × 10 where 8.915 is the mantissa and 5 is the exponent of 10.
Ex. 3: To display 7132 × 125 in scientific format:
1. Key in 7132 [ × ] 125 [
ENTER
]
2. Press [ F←→E ]
You can convert an entry to scientific notati on by pressing [EXP] afte r entering the mantissa.
Ex. 4: Key the number 4.82296 × 10
1. Key in 4.82296 [ EXP ] 5
Engineering format
Engineering format is similar to scientific format, except that the mantissa can have up to three digits to the left of the decimal and the exponent is always a multiple of three. This is useful if you have to convert units that are based on multiples of 10 3.
Ex. 5: Convert 15V to 15000mV (V = Volts)
1. Key in 15
2. Press [ ENG ] twice.
Ex. 6: Convert 15V to 0.015KV (V = Volts)
1. Key in 15
2. Press [ 2ndF ] [ ← ] [ 2ndF ] [ ← ]
Order of Operations
Each calculation is performed in the following order of precedence:
1. Operations in parentheses.
2. Functions that require pressing the function key before entering a value, for example, [ DATA ] in statistics mode, and [ EXP ].
3. Functions that require values to be entered before pressing the function key, for example, cos, sin, tan, cos x2, x–1, √, π, conversion functions.
3
, x!, %, RND, ENG, , , and the unit
4. Fractions.
5. +/–
X
6. x y,
7. nPr, nCr
8. ×, ÷
9. +, –
Corrections
If you have made a mistake when entering a number and you have not yet pressed an arithmetic operator key, just press [ CE ] to clear the last entry. You can then input the desired number again. Alternatively,you can delete digits one at a time by pressing the backspace key: [ 00→0 ].
sin sin
5
–1
DEG
0.
DEG
0.00
DEG
3.26
DEG
0.0000
DEG
4.2300
DEG
DEG
DEG
DEG
DEG
DEG
DEG
891500.
8.915 05
4.82296
15.
15000.
15.
–1
, sin–1, tan–1, log, ln,
0.015
05
,
05
– 03
Ex. 7: Change 12385 to 789
1. Key in 12385
2. Press [ CE ] 789
Ex. 8: Change 12385 to 123
1. Key in 12385
DEG
DEG
2. Press [ 00→0 ] twice.
In a series of calculations, you can correct errors in intermediate results by pressing [ON/C]. This clears the calculation without clearing memory.
If you press the wrong arithmetic operation key, just press [ CE ] and then the correct arithmetic key.
Exchange key
Pressing [ 2ndF ] [ X←→Y ] changes the currently displayed value to the previously displayed value.
123 [ + ] 456 [
123 + 456 = ?
[ 2ndF ] [ X←→Y ]
ENTER
]
[ 2ndF ] [ X←→Y ]
Accuracy and Capacity
Accuracy: ±1 in the 10th digit.
Capacity: In general, calculations can be displayed as a mantissa of
up to 10 digits, a 10-digit mantissa together with a 2-digit exponent up
±99
to 10
, or as an integer between –9999999999 and 9999999999.
Numbers used as input to a particular function must be within the allowable range for that function (as set out in the following table):
Functions Allowable input range
sin x, cos x, tan x
Deg:
Rad:
Grad:
x < 4.5 × 10 x < 2.5 × 10
x < 5 × 10
10
Also, for tan x:
x 90 (2n +1)
Deg:
Rad:
x
(2n +1)
2
Grad: x 100 (2n +1)
where n is an integer.
–1
–1
x, cos
x
–1
sin
tan
sinh x, cosh x
tanh x
–1
sinh
x
–1
cosh
x 1 ≦ x < 5 × 10 99
–1
tanh
x
log x, ln x 1 × 10
10 x –1 × 10
e x –1 × 10
x 0 ≦ x < 1 × 10
x 1
x
x < 1 × 10
x 230.2585092
x < 1 × 10
x < 5 × 10
x < 1
100
100
99
–99
x < 1 x 10
100
x 100
100
x 230.2585092
100
x 2 x < 1 × 10 50
x–1 x│<1 × 10
3
x
X !
x < 1 × 10
0
R→P 22
P→R 0
Deg
Rad
:│θ│< :│θ│<
Grad
100
, X0
100
x ≦ 69, where x is an integer.
100
1 × 10
yx +
r< 1 × 10
100
4.5 × 10 10 deg
2.5 × 10
:│θ│<
5 × 10 10 grad
Also, for tan x:
:│θ│≠
:│θ│≠
:│θ│≠
n is an integer.
90 (2n+1)
(2n+1)
2
100 (2n+1)
Deg
Rad
Grad where
DD, MM, SS.SS 1 × 10
0
MM, SS.SS
x < 1 × 10
x y x > 0 : –1 × 10
x = 0 : y
< 0 : y = n, 1/(2n+1)
x
where
but –1 x 10
x
Y
y > 0 : x 0, –1 x 10
100
100
< y log x < 100
> 0
n is an integer
100
<
y
1
100
y = 0 : x > 0 y < 0 : x =2n+1, l/n
n is an integer other than 0
where
but –1 x 10
Input
ab/c
nPr, nCr STAT x < 1 × 10
The integer, numerator, denominator
and fraction symbols must in total be no more than 10 digits. Result integer, numerator and denominator are each less than 1 × 10 0
rn, n9999999999; n, r are integers.
0 ≦│Σx
n0, Sn1,σ:n0
Range = 1 ~ r, 1
1
100
<
x
Displayed as a fraction when the
10
50
, Σ x < 1 × 10
2
│<1 × 10
nr, 80 r20400
DEC 0 X 9999999999 (for zero or positive)
BIN
–9999999999
0 positive)
1000000000
X –1 (for negative)
X ≦ 0111111111 (for zero or
X 1111111111
(for negative)
03
OCT 0 X 3777777777 (for zero or positive)
4000000000
X 7777777777
(for negative)
HEX 0 X 2540BE3FF (for zero or positive)
FDABF41C01
X FFFFFFFFFF (for
negative)
Overflow and Error Conditions
The symbol E appears when any of the following conditions occur. Press [ ON/C ] to remove the overflow or error indicator.
When you attempt to perform a function calculation with a number
outside the allowable input range.
When you attempt to divide a number by 0.
When you have pressed the [ ( ] key more than 15 times in a
single expression.
When any result (whether intermediate or final) or the
accumulated total in memory is outside ±9.999999999 × 10
When there are more than six pending operations.
If the calculator becomes locked and pressing keys has no effect, press [ M+ ] and [ ENG ] at the same time. This unlocks the calculator and returns all settings to their default values.
Basic Calculations
The following examples of basic calculations assume that your calculator is in decimal base and with floating point display.
789.
DEG
579.00
DEG
456.00
DEG
579.00
10
deg
8
π rad
grad
100
8
π
rad
100
log
x 100
1
<
log y < 100
x
log
y 100
.
100
100
; n, r are integer
,
123.
Mixed Arithmetic Calculations
1 + 2 × 3 = ? 1 [ + ] 2 [ × ] 3 [
–3.5 + 8 ÷2 = ?
3.5 [ +/– ] [ + ] 8 [
ENTER
]
[
ENTER
÷
] 2
DEG
]
7.
DEG
0.5
Parentheses Calculations
Operations inside parentheses are always executed first. You can specify up to 15 levels of parentheses in a single calculation. When you enter the first parenthesis, the and remains until each opening parenthesis has a corresponding closing parenthesis.
( 5 – 2 × 1.5 ) × 3 + 0.8 × (– 4 ) = ? 2 × ( 7 + 6 × ( 5 + 4 )) = ?
[ ( ] 5 [ – ] 2 [ × ] 1.5 [ ) ] [ × ] 3 [ + ] 0.8 [ × ] 4 [ +/– ] [
2 [ × ] [ ( ] 7 [ + ] 6 [ × ] [ ( ] 5 [ + ] 4 [
Note: It is not necessary to press [ ) ] before [
( ) indicator appears on the display
ENTER
]
ENTER
]
ENTER
DEG
2.8
DEG
122.
].
Repeating a Calculation
You can repeat the last number entered, or the last operation executed, by pressing [
Repeating the last number
3 × 3 = ? 3 × 3 × 3 = ?
3 × 3 × 3 × 3 = ?
Repeating the last arithmetic operation
321 + 357 = ? 654 + 357 = ?
579 – 159 = ? 456 – 159 = ?
18 × 45 = ? 18 × 23 = ?
18 × (0.5x10
96 ÷ 8 = ?
÷
75
8 = ?
2
(1.2x10
) ÷ 8 = ?
Percentage Calculations
30% of 120 = ? 70% of 120 = ?
88 is 55% of what number? 30% mark up of 120 = ? 30% discount of 120 = ?
ENTER
ENTER
3 [ × ] [
ENTER
[
]
ENTER
]
[
321 [ + ] 357 [
ENTER
654 [
579 [ – ] 159 [
ENTER
456 [
3 [ × ] 6 [ × ] 45 [
ENTER
23 [
2
) = ?
0.5 [ EXP ] 2 [
96 [ ÷ ] 8 [
ENTER
75 [
1.2 [ EXP ] 2 [
120 [ × ] 30 [ 2ndF ] [ % ]
ENTER
]
[ 70 [ 2ndF ] [ % ] [
÷
88 [
ENTER
[
]
120 [ + ] 30 [ 2ndF ] [ % ]
ENTER
[
]
120 [ – ] 30 [ 2ndF ] [ % ]
ENTER
[
]
].
]
ENTER
]
]
ENTER
]
]
ENTER
]
ENTER
]
ENTER
]
]
ENTER
]
ENTER
] 55 [ 2ndF ] [ % ]
DEG
9.
DEG
27.
DEG
81.
DEG
678.
DEG
1011.
DEG
DEG
DEG
]
DEG
DEG
DEG
DEG
DEG
DEG
DEG
]
DEG
DEG
DEG
420.
297.
810.
414.
900.
12.
9.375
15.
36.
84.
160.
156.
84.
Memory Calculations
The M indicator appears when a number is stored in memory.
Recalling from memory does not delete the contents of memory.
The memory is not available when you are in statistics mode.
To copy the displayed number to memory, press [ X→M ].
To clear the memory, press [ 0 ] [ X→M ], or [ CE ] [ X→M ], in
that order.
3 × 5
÷
+ 56 + 74 – 8 × 7 Total = ?
[ CE ] [ X→M ]
3 [ × ] 5 [ M+ ]
7
56 [ ÷ ] 7 [ M+ ]
74 [ – ] 8 [ × ] 7 [ M+ ]
[ MR ]
0 [ X
M ]
DEG
DEG
M
DEG
M
DEG
M
DEG
M
DEG
0.
15.
8.
18.
41.
0.
Common Math Calculations
The following example calculations assume that your display is fixed at 2 decimal places.
Reciprocal, Factorial
1
= ?
25.1
5! = ? 5 [ 2ndF ] [ x! ] [
1.25 [ 2ndF ] [ x
Square, Square Root, Cube Root, Power, Other Roots
2 2 + 3 4 = ? 2 [ x 2 ] [ + ] 3 [ x y ] 4 [
5 ×
9
72
3
27
= ?
+34= ?
5 [ × ] 27 [ 2ndF ] [
34 [
72 [ 2ndF ] [
Logarithms and Antilogarithms
ln7 + log100 = ? 7 [ ln ] [ + ] 100 [ log ] [
10 2 = ? 2 [ 2ndF ] [ 10 x ] [
e 5 – e –2 = ?
5 [ 2ndF ] [ e [ 2ndF ] [ e
] [
ENTER
–1
] [
ENTER
3
]
X
] 9 [
ENTER
x
] [ – ] 2 [+/–]
x
ENTER
] [
ENTER
]
ENTER
] [ + ]
ENTER
ENTER
]
DEG
]
0.80
DEG
120.00
DEG
]
85.00
DEG
20.83
DEG
]
1.61
DEG
]
3.95
DEG
]
100.00
DEG
148.28
Fraction calculations
Fractions are displayed as follows:
ENTER
d
]
ENTER
=
= 56
/c ]
ENTER
].
5
12
5
12
]
DEG
DEG
], or if a fraction was
DEG
ENTER
]
DEG
DEG
DEG
DEG
8∪ 4 」15
124 」15
9 ∪ 7」36
9.19
12.19
8 ∪ 2」3
12350.77
56 ∪ 5 」12
Note : The display is truncated if the integer, numerator, denominator
and fraction symbols together are more than 10 digits.
d
5 」12
Press [ 2ndF ] [ fraction.
2
3
+ 7
3
5
4
= 8
15
124
=
15
If you press [ ab/c ] after pressing [ combined with a decimal number, the answer is displayed as a decimal number.
4
5
+ 3
9
7
= 9.19
= 9
36
4
8
+ 3.75 = 12.19
9
Where possible, a fraction is reduced to its lowest terms after you press [ + ], [ – ], [ × ], [
119
= 8
3
21
A result is displayed in decimal format if the integer, numerator, denominator and fraction symbols are together more than 10 digits.
12345
16
= 12350.77
/c ] to convert the displayed value to an improper
3 4
2 [ ab/c ] 3 [ + ] 7 [ ab/c ] 3 [ ab/c ] 5 [
[ 2ndF ] [
5 [ ab/c ] 4 [ ab/c ] 9 [ + ] 3 [ ab/c ] 3 [ ab/c ] 4 [
[ ab/c ]
8 [ ab/c ] 4 [ ab/c ] 9 [ + ]
ENTER
3.75 [
÷
] or [
3 [ ab/c ] 119 [ ab/c ] 21
2
ENTER
]
[
3
5
12345 [ ab/c ] 5 [ ab/c ] 16
6
+5
[ + ] 5 [ ab/c ] 6 [ ab/c ] 13
13
ENTER
[
]
Converting Angular Units
You can specify an angular unit of degrees (DEG), radians (RAD), or grads (GRAD). You can also convert a value expressed in one angular unit to its corresponding value in another angular unit.
The relation between the angular units is:
180° =
radians = 200 grads
99
To change the angular unit setting to another setting, press
[ DRG ] repeatedly until the angular unit you want is indicated in the display.
After entering the value of an angle, press [ 2ndF ] [ DRG→]
repeatedly until the value is converted to the desired unit.
90° (deg) = ? (rad)
= ? (grad)
π
90 [ 2ndF ] [ DRG→]
[ 2ndF ] [ DRG
DEG
90.
RAD
1.57
]
GRAD
100.00
Trigonometric and Inverse Trigonometric Functions
Before undertaking a trigonometric or inverse trigonometric calculation, make sure that the appropriate angular unit is set.
3 sin 85° = ? 3 [ × ] 85 [ sin ] [
cos (
rad) = ?
4
[ 2ndF ] [ [ cos ]
π
ENTER
] [ ÷ ] 4 [
tan 150 grad = ? 150 [ tan ]
sin –1 0.5 = ? deg 0.5 [ 2ndF ] [ sin –1 ]
1
cos
? rad
–1
(
) =
2
] [ 2ndF ] [ x–1] [ 2ndF ]
2 [
–1
]
[ cos
tan –1 1 = ? grad 1 [ 2ndF ] [ tan –1]
]
ENTER
DEG
2.99
]
RAD
0.71
GRAD
DEG
30.00
RAD
0.79
GRAD
–1.00
50.00
Hyperbolic and Inverse hyperbolic functions
cosh1.5+sinh1.5 = ?
sinh –1 7 = ?
tanh 1 = ? 1 [ HYP ] [ tan ]
1.5 [ HYP ] [ cos ] [ + ] 1.5 [ HYP ] [ sin ] [
7 [ HYP ] [ 2ndF ] [ sin
ENTER
]
–1
]
DEG
4.48
DEG
2.64
DEG
0.76
Rectangular and Polar coordinates
Rectangular Coordinates Polar Coordinates
a + b i = r (cosθ + i sinθ)
Note: Before undertaking a coordinates conversion calculation, make
sure that the appropriate angular unit is set.
Converting from Rectangular to Polar
If a = 5 and b = 6, what are
5 [ a ] 6 [ b ] [ 2ndF ] [ R→P ]
θ
r and
?
[ b ]
DEG
7.81
DEG
50.19
Converting from Polar to Rectangular
If r = 25 and θ= 56°, what are and
b?
25 [ a ] 56 [ b ] [ 2ndF ]
[ P
a
R ]
[ b ]
DEG
13.98
DEG
20.73
Permutations and Combinations
! n
nPr =
How many permutations of 4 items can you select from a set of 7 items? How many combinations of 4 items can you select from a set of 7 items?
nCr =
)!rn(
! n
)!rn(! r
7 [ 2ndF ] [ nPr ] 4 [
7 [ 2ndF ] [ nCr ] 4 [
ENTER
ENTER
]
]
DEG
840.00
DEG
35.00
Sexagesimal ↔ Decimal form Conversions
You can convert a sexagesimal figure (degree, minute and second) to a decimal number by pressing [ to a sexagesimal figure by pressing [ 2ndF ] [
] and convert a decimal number
].
Sexagesimal figures are displayed as follows:
׀ ׀
12
45 ׀ 30
Note: If the total number of digits in a DD, MM and SS.SS figure
exceeds 8, the figure is truncated.
= 12 degrees, 45 minutes, 30.5
5
seconds
Converting from Sexagesimal to Decimal
12 deg., 45 min.,
30.5 sec.= ?
Converting from Decimal to Sexagesimal
2.12345 = ? 2.12345 [ 2ndF ] [
] 45 [ ] 30.5
12 [ [
]
DEG
12.76
DEG
2
7 ׀24 ׀׀42
]
Base-n Calculations
Converting between bases
You can add, subtract, multiply, and divide binary, octal, and hexadecimal numbers in addition to decimal numbers. Select the number base you want by pressing [
[
DEC]. The BIN, OCT, and HEX indicators show you which base you are using. (If none of these indicators is displayed, you are using decimal base.)
BIN], [→OCT], [→HEX], or
The number keys that are active in a particular base are: Binary base: [ 0 ] and [ 1 ]
Octal base: [ 0 ] to [ 7 ]
Decimal base: [ 0 ] to [ 9 ]
Hexadecimal base: [ 0 ] to [ 9 ] and [ A ] to [ F ]
DEC] 31
31 (base 10) = ? (base 2) = ? (base 8)
= ? (base 16)
4 × 1B (base 16) = ? (base 2)
= ? (base 10) = ? (base 8)
[ 2ndF ] [
[ 2ndF ] [→BIN]
[ 2ndF ] [→OCT]
HEX]
[ 2ndF ] [ [ 2ndF ] [→HEX] 4 [ × ] 1B
ENTER
[
] [ 2ndF ] [→BIN]
[ 2ndF ] [→DEC]
[ 2ndF ] [
OCT]
DEG
31.
DEG BIN
11111.
DEG OCT
37.
DEG HEX
1F.
DEG HEX
6C.
DEG BIN
1101100.
DEG
108.00
DEG OCT
154.
Negative Numbers and Complements
In binary, octal, and hexadecimal bases, negative numbers are expressed as complements. The complement is the result of subtracting that number from 10000000000 in that number’s base. You do this by pressing [+/–] in a non-decimal base.
Calculate the complement of binary number 11011
[ 2ndF ] [
BIN ] 11011 [+/–]
DEG BIN
1111100101.
Complex Number Calculations
Press [ CPLX ] to enter complex number mode. The CPLX indicator appears on the display. You can add, subtract, multiply, and divide compl ex number s.
Complex numbers are generally represented as real part and
( 7 – 9 i ) + (15 + 10 i) = ?
bi is the imaginary part.
[ 2ndF ] [ CPLX ] 7 [ a ] 9 [ +/– ] [ b ] [ + ] 15 [ a ] 10 [ b ]
ENTER
[
] [ b ]
a + b i, where a is the
DEG CPLX
22.00
DEG CPLX
1.00
Note: Memory calculation is available in complex number mode.
Random Numbers
Press [ 2ndF ] [ RND ] to generate a random number between 0.000 and 0.999.
Unit Conversions
The unit conversion keys are [°F←→°C ], [ mmHg←→Kpa ], [ gal←→I ],
←→
[ lb
kg ] and [ oz←→g ]. The following example illustrates the general
procedure for converting values from one unit to another.
12 in = ? cm
98 cm = ? in
B ] [ 2ndF ] [ in←→cm]
12 [ A 98 [ 2ndF ] [ A
←→
[ in
cm ]
B ] [ 2ndF ]
DEG
30.48
DEG
38.58
Statistics
Press [ 2ndF ] [ STAT ] to enter statistics mode. The STAT indicato r appears on the display. In statistics mode you can calculate the following single-variable statistics:
n number of data items Σx sum of the values of all the data items
2
sum of the squares
Σx
mean value
s sample standard deviation
σ population standard deviation
22
/n)x(x
1n
22
/n)x(x
n
Continued on other side
CP precision capability
x
x
DEG
π
x
π
LSLUSL
σ 6
CPK process capability Min(CPU, CPL)
where CPU =
Note: In statistics mode, all function keys are available except those
used for base-n calculations.
Ex. 9: Enter the following data {2, 5, 5, 5, 5, 9, 9, and 9} and
calculate Σx, Σx value = 12 and LSL value = 2.
xUSL
CPL =
σ 3
2
, n, x, S, CP, and CPK, where USL
In STAT mode [ 2ndF ] [ STAT ]
[ DATA ] 2
[ DATA ] 5
[ DATA ] 5
[ DATA ] 5
Enter all data
[ DATA ] 5
[ DATA ] 9
[ DATA ] 9
[ DATA ] 9
ENTER
]
[
= ? [ x ]
n = ? [ n ]
S = ? [ S ]
Σx = ? [ 2ndF] [ Σx ]
Σx 2 = ?
[ 2ndF ] [ Σx
2
]
σ= ? [ 2ndF ] [ σ ]
[ 2ndF ] [ CP ] 12
ENTER
[
CP = ?
ENTER
[
] 2
]
[ 2ndF ] [ CPK ]
ENTER
[
CPK = ?
Note: The calculator retains the data you have entered until you exit
statistics mode. The data is retained even if you turn off the calculator or it automatically turns off.
ENTER
[
]
]
LSLx
σ 3
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
DEG STAT
0.00
2.
5.
5.
5.
5.
9.
9.
9.
0.00
6.13
8.00
2.59
49.00
347.00
2.42 σ
CP
12.
USL CP
2.
LSL CP
0.69
CPK
12.00
USL CPK
2.00
LSL CPK
0.57
Viewing Statistics Data
Press [ DATA ] or [ you have entered. (If you press [ DATA ] the item number of the data appears briefly before the value.)
Ex.10: View the data entered in Ex. 9.
Method 1
1. Press [ 2ndF ] [ EDIT ] to enter edit mode.
2. Press [ DATA ] once to view the first data item.
DEG ED STAT
3. Continue pressing [ DATA ] to display each data item. You will see data 2, 5.00, data 3, 5.00, data 4, 5.00, data 5, 5.00, data 6,
9.00, data 7, 9.00, data 8, 9.00 in sequence.
Method 2
1. Press [
2. Continue pressing [
5.00, 5.00, 5.00, 5.00, 9.00, 9.00, 9.00 in sequence.
ENTER
] in edit (ED) mode to view the statistics data
dAtA 1
ENTER
1.5 seconds
] once to view the first data item.
ENTER
DEG ED STAT
DEG ED STAT
2.00
2.00
] to display each data item. You will see
Adding a Data Item
Ex. 11: To add a 9th data item, of value 10, to the Ex. 9 dataset:
1. Press [ DATA ] 10
The calculator updates the statistics as you enter data. You can then recall the statistics to get :
2
Σx
= 447.00 and σ= 2.59.
= 6.56, n = 9.00, S = 2.74, Σx = 59.00,
DEG ED STAT
10.
Editing Statistics Data
Ex.12: Change the value of data item 1 in Ex. 9 from 2 to 3.
Method 1
1. Press 2 [ 2ndF ] [ DEL ] 3
Method 2
1. Press [ 2ndF ] [ EDIT ]
2. Display 2 by pressing [ DATA ] or
ENTER
[
]
3. Enter 3 to overwrite 2.
4. Press [
ENTER
] to make the change.
DEG ED STAT
DEG ED STAT
DEG ED STAT
0.00
2.00
5. Press [ 2ndF ] [ EDIT ] to exit edit mode.
Ex.13: Based on Ex.9, delete the first data entry (of value 2).
Method 1
1. Press 2 [ 2ndF ] [ DEL ] to delete 2.
Method 2
1. Press [ 2ndF ] [ EDIT ]
2. Display 2 by pressing [ DATA ] or
ENTER
[
].
3. Press [ 2ndF ] [ DEL ]
DEG ED STAT
DEG ED STAT
DEG ED STAT
0.00
2.00
5.00
4. Press [ 2ndF ] [ EDIT ] to exit edit mode.
Delete Error
If you try to delete a value that is not in the dataset, dEL Error appears. (Existing data is not affected.)
Ex.14: Delete 7 from the dataset in Ex.9.
1. Press 7 [ 2ndF ] [ DEL ]
2. Press any key to clear the message.
Ex.15: Delete 5 × 5 from the dataset in Ex.9.
1. Press 5 [ × ] 5 [ 2ndF ] [ DEL ]
2. Press any key to clear the message.
DEG STAT
dEL Error
DEG STAT
DEG STAT
dEL Error
DEG STAT
0.00
0.00
Weighted Data Entry Method
Instead of entering each data item individually, you can enter the value and the number of occurrences of that value (up to 255). The data from Ex.9 can be entered as follows:
Value Number of occurrences
2 1 5 4 9 3
Alternative method
[ DATA ] 2 [ DATA ] 5 [ × ] 4 [ DATA ] 9 [ × ] 3
where item 1 = 2, items 2 to 5 = 5, and items 6 to 8 = 9.
Error Conditions
The indicator FULL appears when any of the following conditions occur. Further data entry is not possible. Press any key to clear the indicator. Providing that you remain in statistics mode, previously entered data entries are unaffected.
You attempt to enter more than 80 data items.
The number of occurrences of of any particular data value is
greater than 255
The product of the number of data items and the number of
occurrences is greater than 20400.
© Copyright 2002 Hewlett-Packard Development Company, L.P.
Reproduction, adaptation or translation without prior written approval is forbidden except as allowed under copyright laws.
Printed in China. HDPMR178127 MWB
HP part number : F2212-90002
ENTER
]
]
]
]
ENTER
] [
3
ENTER
]
5
12
ENTER
ENTER
]
]
]
ENTER
] [ + ]
ENTER
]
5
12
].
]
DEG
]
DEG
]
]
]
]
]
]
10.30
122.
ENTER
DEG
9.
DEG
27.
DEG
81.
DEG
678.
DEG
1011.
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
M
M
M
M
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
DEG
ENTER
DEG
DEG
DEG
DEG
DEG
DEG
RAD
GRAD
DEG
RAD
GRAD
DEG
297.
810.
414.
900.
12.
9.375
15.
36.
84.
160.
156.
84.
0.
DEG
15.
DEG
8.
DEG
18.
DEG
41.
0.
0.80
120.00
85.00
20.83
1.61
3.95
100.00
148.28
8∪ 4 」15
124 」15
], ou si
9 ∪ 7」36
9.19
12.19
8 ∪ 2」3
12350.77
90.
1.57
100.00
2.99
0.71
–1.00
30.00
420.
].
9S
Calculatrice scientifique
Fonctionnement général
Alimentation
Allumage et extinction
Pour allumer la calculatrice, appuyez sur [ON/C].
Pour éteindre la calculatrice, appuyez sur [2ndF] [OFF].
Fonction d'extinction automatique
La calculatrice s'éteint automatiquement si elle n'est pas utilisée pendant environ 9 minutes. Pour la rallumer, appuyez à nouveau sur la touche [ON/C]. Le contenu de la mémoire et les réglages de mode (STAT, DEG, CPLX, Base-n, manuelle ou automatique de la calculatrice.
Remplacement des piles
La calculatrice est alimentée par deux piles bouton alcalines (GP76A ou LR44). Si l'affichage devient sombre ou difficile à lire, remplacez les piles dès que possible.
Pour remplacer les piles
1. Retirez le couvercle et les vieilles piles.
2. Insérez les piles neuves, côté plus vers l'extérieur.
3. Reposez le capot et appuyez sur la touche [ON/C] pour allumer la calculatrice.
Clavier
La plupart des touches ont deux fonctions.
1
Ces fonctions sont obtenues en appuyant sur la touche sans appuyer d'abord sur [ 2ndF ]. La fonction est indiquée par l'étiquette sur la touche.
2
Fonction obtenue en appuyant sur la touche après avoir appuyé sur [ 2ndF ]. La fonction est indiquée par l'étiquette au-dessus ou à droite de la touche.
Une pression sur [ 2ndF ], active l'indicateur indiquer que la touche suivante sélectionnera la deuxième fonction. Si vous appuyez par erreur sur [ 2ndF ], rappuyez simplement sur la touche [ 2ndF ] pour éteindre l'indicateur
Remarque : [ A ], [ B ], [ C ], [ D ], [ E ], [ F ] sont des 1
ère
fonction
ème
fonction
ème
2
fonction
ère
1
mode HEX.
Symboles à l'écran
Les symboles ci-dessous indiquent à l'écran l'état de la calculatrice.
DEG ou RAD ou GRAD : unité d'angle degrés, radians ou grades M Valeur en mémoire CPLX Mode nombres complexes E Dépassement ou erreur STAT Mode statistique – Moins 2ndF Touche [2ndF] activée ( ) Calcul de parenthèses CP Capacité de précision BIN Mode binaire CPK Capacité de traitement OCT Mode octal σ Ecart HEX Mode hexadécimal USL Définition limite supérieure ED Mode édition LSL Définition limite inférieure HYP Mode hyperbolique
Formats d'affichage
La calculatrice peut afficher les nombres sous quatre formats : virgule flottante, virgule fixe, scientifique et ingénieur.
Format virgule flottante
Le format virgule flottante affiche les nombres sous forme décimale jusqu'à 10 chiffres. Les zéros de fin sont supprimés.
Si le résultat d'un calcul est trop grand pour être représenté par 10 chiffres, l'affichage passe automatiquement en format scientifique. Si le résultat d'un calcul ultérieur peut être affiché sur moins de 10 chiffres, la calculatrice revient au format virgule flottante.
Pour choisir le format d'affichage en virgule flottante :
1. Appuyez sur [2ndF ] [ FIX ] [
Format virgule fixe
Les formats virgule fixe, scientifique et ingénieur utilisent un nombre
3.
fixe de décimales pour l'affichage des nombres. Si vous entrez plus de décimales que le nombre indiqué, l'entrée est arrondie au nombre de décimales correct.
Ex. 1 : Définissez l'affichage à 2 décimales fixes, puis entrez 3.256
1. Appuyez sur [2ndF ] [ FIX ] 2
2. Entrez 3.256 [
Si vous entrez moins de décimales que le nombre indiqué, l'entrée est complétée par des zéros de fin.
Ex. 2 : Définissez l'affichage à 4 décimales fixes, puis entrez 4.23
1. Appuyez sur [2ndF ] [ FIX ] 4
2. Entrez 4.23 [
Format scientifique
En format scientifique, le nombre 891500 est affiché sous la forme
8.915 × 10
05
, où 8.915 est la mantisse et 5 l'exposant de 10.
Ex. 3 : Pour afficher 7132 x 125 au format scientifique :
1. Tapez 7132 [ x ] 125 [
2. Appuyez sur [F←→E ]
Vous pouvez convertir une entrée en notation scientifique en appuyant sur [EXP] après entrée de la mantisse.
Ex. 4 : Entrez le nombre 4.82296 x 10
1. Entrez 4.82296 [ EXP ] 5
Format ingénieur
Le format ingénieur est comparable au format scientifique, mais la mantisse peut avoir jusqu'à trois chiffres à gauche du séparateur décimal et l'exposant est toujours un multiple de trois. Ceci est utile pour convertir des unités basées sur des multiples de 10
Ex. 5 : Conversion de 15 V en 15000 mV (V = Volt)
1. Entrez 15
2. Appuyez deux fois sur [ENG ].
Ex. 6 : Conversion de 15 V en 0.015 kV (V = Volt)
1. Entrez 15
2. Appuyez deux fois sur [2ndF ] [ ← ]
Ordre des opérations
Chaque calcul est effectué en tenant compte de l'ordre de priorité suivant :
1. Opérations entre parenthèses.
2. Fonctions nécessitant l'appel d'une touche de fonction avant l'entrée d'une valeur, par exemple [ DATA ] en mode statistique et [ EXP ].
3. Fonctions nécessitant l'entrée d'une valeur avant l'appui sur la touche de fonction, par exemple, cos, sin, tan, cos
2
log, ln, x
, x–1, √, π,
fonctions de conversion d'unités.
4. Fractions.
5. +/–
y, X
6. x
7. nPr, nCr
÷
8. ×,
9. +, –
Corrections
En cas d'erreur lors de l'entrée d'un nombre, si vous n'avez pas encore appuyé sur la touche de l'opérateur arithmétique, appuyez simplement sur [ CE ] pour effacer la dernière entrée. Vous pouvez ensuite recommencer l'entrée du nombre. Vous pouvez aussi supprimer des chiffres un par un en appuyant sur la touche de retour arrière : [ 00
0 ].
fonction
ENTER
ENTER
) sont conservés à l'extinction
――――――
―――
sin sin
2ndF.
]
]
]
ENTER
]
5
3
, x!, %, RND, ENG, ,
–1
2ndF sur l'écran pour
ère
fonctions en
DEG
0.
DEG
0.00
DEG
3.26
DEG
0.0000
4.2300
DEG
DEG
DEG
DEG
DEG
DEG
DEG
891500.
8.915
4.82296
3
.
15.
15000.
15.
0.015
–1
, sin–1, tan–1,
05
03
et les
Ex. 7 : Modification de 12385 en 789
1. Appuyez sur [CE ] 789
Ex. 8 : Modification de 12385 en 123
1. Appuyez deux fois sur [00
Dans une série de calculs, vous pouvez corriger les erreurs dans les résultats intermédiaires en appuyant sur [ON/C]. Cette touche efface le calcul sans effacer la mémoire.
En cas d'erreur sur la touche d'opération arithmétique, il suffit d'appuyer sur la touche [ CE ] avant toute autre entrée.
0 ].
DEG
DEG
Touche d'échange
L'appui sur [ 2ndF ] [ X←→Y ] échange la valeur affichée avec la valeur affichée précédemment.
123 [ + ] 456 [
123 + 456 = ?
[ 2ndF ] [ X←→Y ]
[ 2ndF ] [ X
Précision et capacité
Précision : ±1 unité du 10
Capacité : En général, les calculs peuvent être affichés sous forme
d'une mantisse pouvant comporter jusqu'à 10 chiffres, une mantisse de 10 chiffres avec un exposant à 2 chiffres jusqu'à 10 entier entre –9999999999 et 9999999999.
Les nombres utilisés en entrée d'une fonction doivent être dans la plage autorisée pour cette fonction (définie dans le tableau ci-dessous) :
Fonctions Plage d'entrée autorisée
sin x, cos x, tan x
–1
–1
x, cos
x
–1
x
sin
tan
sinh x, cosh x
tanh x
–1
sinh
x
–1
cosh
x 1 ≦ x < 5 x 10 99
–1
tanh
x
log x, ln x 1 x 10
10 x –1 x 10
e x –1 x 10
x 0 ≦ x < 1 x 10
ENTER
]
←→
Y ]
ème
chiffre.
x < 4.5 x 10
Deg :
Rad :
x < 2.5 x 10
Grad :
x < 5 x 10
Idem pour tan x:
Deg :
x 90 (2n +1)
π
x
Rad :
Grad : où
n est un entier.
2
x 100 (2n +1)
x 1
x < 1 x 10
100
x 230.2585092
x < 1 x 10
x < 5 x 10
100
99
x < 1
–99
x < 1 x 10
100
x 100
100
x 230.2585092
100
10
(2n +1)
x 2 x < 1 x 10 50
x–1 x│<1 x 10
3
x
X !
x < 1 x 10
0
R→P
P→R 0
:│θ│<
Deg
:│θ│<
Rad
Grad Idem pour tan x:
:│θ│≠
Deg
:│θ│≠
Rad
Grad où
n est un entier.
DD, MM, SS.SS 1 x 10
0
MM, SS.SS
x < 1 x 10
x y x > 0 : –1 x 10
x = 0 : y
x
< 0 : y = n, 1/(2n+1), où n est un entier
mais –1 x 10
x
Y
y > 0 : x 0, –1 x 10
y = 0 : x
y < 0 : x =2n+1, l/n, où n est un entier
différent de 0
mais –1 x 10
ab/c
05
nPr, nCr
STAT x < 1 x 10
DEC
BIN
OCT
HEX
Entrée dénominateur et le symbole de fraction ne doivent pas dépasser 10 chiffres. Résultat quand la partie entière, le numérateur et le dénominateur sont chacun inférieur à 1 x
10
10 0 r n, n9999999999; n, r sont des entiers.
0 ≦│Σx entiers
n0, Sn1,σ:n0
Plage = 1 ~ r, 1
X 9999999999 (pour zéro ou positif)
0 –9999999999
≦ X
0
1000000000
X 3777777777 (pour zéro ou positif)
0 4000000000
X 2540BE3FF (pour zéro ou positif)
0 FDABF41C01 (pour négatif)
100
, X0
100
x ≦ 69, où x est un entier.
1 x 10
1 x 10
100
100
22
yx +
r
4.5 x 10 10 deg
2.5 x 10
:│θ│<
5 x 10 10 grad
90 (2n+1)
(2n+1)
:│θ│≠
2
100 (2n+1)
100
100
< y log x < 100
> 0
100
1
<
y
100
> 0
1
100
<
La partie entière, le numérateur, le
x
Affiché sous forme de fraction
.
50
, Σ x < 1 x 10
2
│<1 x 10
nr, 80r20400
X –1 (pour négatif)
0111111111 (pour zéro ou positif)
X 1111111111 ( pou r n ég at if )
X 7777777777 (pour négatif)
X FFFFFFFFFF
Erreur et dépassement de capacité
Appuyez sur [ON/C] pour supprimer l'affichage d'erreur ou de
03
dépassement de capacité. Le symbole suivants :
Quand vous tentez d'effectuer un calcul de fonction avec un
nombre en dehors de la plage d'entrées autorisée.
Quand vous tentez de diviser un nombre par 0.
Quand vous avez appuyé plus de 15 fois sur la touche [ ( ] dans
une même expression.
Quand un résultat (intermédiaire ou final) ou le total accumulé en
mémoire est en dehors de la plage ±9.999999999 x 10
Quand il y a plus de six opérations en attente.
Si la calculatrice est verrouillée et que les actions sur les touches n'ont plus d'effet, appuyez en même temps sur [ M+ ] et [ ENG ]. Cette manœuvre déverrouille la calculatrice et ramène tous les réglages à leurs valeurs par défaut.
E apparaît dans un des cas
Calculs de base
Les exemples de calcul de base ci-dessous supposent que votre calculatrice est en base décimale et en affichage virgule flottante.
Calculs arithmétiques divers
1 + 2 x 3 = ? 1 [ + ] 2 [ x ] 3 [ –3.5 + 8 ÷2 = ? 3.5 [+/–] [ + ] 8 [ ÷] 2 [
Calculs avec parenthèses
Les opérations entre parenthèses sont toujours exécutées en premier. Vous pouvez utiliser jusqu'à 15 niveaux de parenthèses dans un même calcul. A l'entrée de la première parenthèse, l'indicateur apparaît à l'affichage et y subsiste jusqu'à ce que chaque parenthèse ouvrante comporte une parenthèse fermante correspondante.
ENTER
]
ENTER
789.
DEG
579.00
DEG
456.00
DEG
579.00
±99
, ou un
10
deg
8
π rad
grad
100
8
π
rad
100
,
x 100
log
1
<
log y < 100
x
log
y 100
100
100
; n, r sont des
99
DEG
9.
DEG
]
5.75
123.
( 5 – 2 x 1.5 ) x 3 + 0.8 x (– 4 ) = ? 2 x { 7 + 6 x ( 5 + 4 ) } = ?
[ ( ] 5 [ ?] 2 [ x ] 1.5 [ ) ] [ x ] 3 [ + ] 0.8 [ x ] 4 [ +/– ] [
2 [ x ] [ ( ] 7 [ + ] 6 [ x ] [ ( ] 5
ENTER
[ + ] 4 [
]
Remarque : Il n'est pas nécessaire d'appuyer sur [ ) ] avant [
Répétition d'un calcul
Vous pouvez répéter le dernier nombre entré ou la dernière opération exécutée en appuyant sur [
Répétition du dernier nombre
3 x 3 = ? 3 x 3 x 3 = ?
3 x 3 x 3 x 3 = ?
Répétition de la dernière opération arithmétique
321 + 357 = ? 654 + 357 = ?
579 –159 = ? 456 –159 = ?
18 x 45 = ? 18 x 23 = ?
18 x (0. 5x10
96 ÷ 8 = ? 75
(1.2 x 10 = ?
÷
8 = ?
2
) ÷ 8
2
) = ?
Calculs de pourcentage
30% de 120 = ? 70% de 120 = ?
88 représente 55% de ? 30% de plus sur 120 = ? 30% de réduction sur 120 = ?
ENTER
].
ENTER
3 [ x ] [
ENTER
[
ENTER
[
321 [ + ] 357 [
654 [
579 [ – ] 159 [
456 [
3 [ x ] 6 [ x ] 45 [
23 [
0.5 [ EXP ] 2 [
96 [ ÷] 8 [
75 [
1.2 [ EXP ] 2 [
120 [ x ] 30 [ 2ndF ] [ % ]
ENTER
[ 70 [ 2ndF ] [ % ] [ 88 [
ENTER
[ 120 [ + ] 30 [ 2ndF ] [ % ]
ENTER
[ 120 [ – ] 30 [ 2ndF ] [ % ]
ENTER
[
]
]
]
ENTER
ENTER
]
ENTER
ENTER
]
ENTER
]
ENTER
ENTER
ENTER
]
ENTER
]
÷
] 55 [ 2ndF ] [ % ]
]
]
]
ENTER
]
ENTER
Calculs en mémoire
L'indicateur M apparaît quand un nombre est enregistré dans la
mémoire.
Le rappel depuis la mémoire n'efface pas le contenu de la
mémoire.
La mémoire n'est pas disponible en mode Statistiques.
Pour copier le nombre affiché vers la mémoire, appuyez sur
[ X
M ].
Pour effacer la mémoire, appuyez sur [ 0 ] [ X→M ] ou [ CE ]
[ X
M ] dans cet ordre.
[ CE ] [ X
M ]
3 x 5
÷
+ 56
7 + 74 – 8 x 7 Total = ?
3 [ x ] 5 [ M+ ] 56 [ ÷] 7 [ M+ ]
74 [ – ] 8 [ x ] 7 [ M+ ]
[ MR ] 0 [ X
M ]
Calculs mathématiques courants
Les exemples de calcul ci-dessous supposent que l'affichage est en mode fixe à 2 décimales.
Inverse, Factorielle
1
= ?
25.1
5! = ? 5 [ 2ndF ] [ x! ] [
1.25 [ 2ndF ] [ x
–1
ENTER
Carré, racine carrée, racine cubique, puissance, autres racines
2 2 + 3 4 = ? 2 [ x 2 ] [ + ] 3 [ x y ] 4 [
5 x
9
72
3
27
= ?
+34= ?
5 [ x ] 27 [ 2ndF ] [
ENTER
34 [
] [
X
72 [ 2ndF ] [
]
] 9 [
Logarithmes et exponentielles
ln7 + log100 = ? 7 [ ln ] [ + ] 100 [ log ] [
10 2 = ? 2 [ 2ndF ] [ 10 x ] [
e 5 – e –2 = ?
5 [ 2ndF ] [ e [ 2ndF ] [ e
ENTER
x
] [ – ] 2 [+/–]
x
ENTER
] [
Calculs de fraction
Les fractions sont affichées comme suit :
12
56 ∪ 5 」12
5
Remarque : L'affichage est tronqué si la partie entière, le numérateur,
Appuyez sur [2ndF ] [ fraction sans partie entière.
2 3
= 8
=
Si vous appuyez sur [ ab/c ] après avoir appuyé sur [ une fraction a été associée à un nombre décimal, le résultat est affiché sous forme de nombre décimal.
5
= 9
8
Chaque fois que c'est possible, une fraction est réduite après appui sur la touche [ + ], [ – ], [ x ], [
3
Le résultat est affiché sous forme décimale si la partie entière, le numérateur, le dénominateur et le symbole de fraction dépassent le total de 10 chiffres.
12345
= 12350.77
le dénominateur et le symbole de fraction dépassent le total de 10 chiffres.
d
3
+ 7
5
4
15
124
15
4
3
+ 3
9
4
7
= 9.19
36
4
+ 3.75 = 12.19
9
119
= 8
21
2 [ ab/c ] 3 [ + ] 7 [ ab/c ] 3 [ ab/c ] 5 [
[ 2ndF ] [
5 [ ab/c ] 4 [ ab/c ] 9 [ + ] 3 [ ab/c ] 3 [ ab/c ] 4 [
[ ab/c ]
8 [ ab/c ] 4 [ ab/c ] 9 [ + ]
3.75 [
3 [ ab/c ] 119 [ ab/c ] 21
2
ENTER
[
3
5
16
12345 [ ab/c ] 5 [ ab/c ] 16
6
+5
[ + ] 5 [ ab/c ] 6 [ ab/c ] 13
13
ENTER
[
=
= 56
/c ] pour convertir la valeur affichée en
ENTER
]
d
/c ]
ENTER
]
÷
ENTER
] ou [
]
]
Conversion d'unités d'angle
Vous pouvez spécifier l'unité d'angle : degrés (DEG), radians (RAD), ou grades (GRAD). Il est aussi possible de convertir une valeur exprimée dans une unité d'angle en la valeur correspondante dans une autre unité.
La relation entre les unités d'angle est la suivante :
180° =
radians = 200 grades
π
Pour changer le réglage d'unité d'angle, appuyez sur [ DRG ]
jusqu'à faire indiquer l'unité d'angle voulue sur l'écran.
Après l'entrée de la valeur d'un angle, appuyez sur [ 2ndF ]
[ DRG
] plusieurs fois pour faire convertir la valeur dans l'unité
voulue.
90° (deg) = ? (rad)
= ? (grad)
90 [ 2ndF ] [ DRG→]
[ 2ndF ] [ DRG
]
Fonctions trigonométriques et trigonométriques inverses
Avant d'effectuer un calcul trigonométrique ou trigonométrique inverse, vérifiez que vous avez spécifié l'unité d'angle appropriée.
3 sin 85° = ? 3 [ x ] 85 [ sin ] [
cos (
rad) = ?
4
( )
tan 150 grad = ? 150 [ tan ]
sin –1 0.5 = ? deg 0.5 [ 2ndF ] [ sin –1 ]
[ 2ndF ] [ [ cos ]
π
ENTER
] [÷] 4 [
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