Contrast adjustment
SR-281 / SR-282 Scientific Calculator

HDBMR17EE01 D25

Pressing the [ ] or [ + ] following [ MODE ] key can make the contrast of the screen lighter or darker. Holding either key down will make the display become respectively lighter or darker.

Display readout

The display comprises two lines and indicators. The upper line is a dot display up to 128 characters. The lower line is capable of displaying a result of up to 12 digits, as well as 2-digits positive or negative exponent. When formulas are input and executed the calculation by [ ], they are displayed on the upper line, and then results are shown on the lower line. The following indictors appear on the display to indicate you the current status of the calculator. Indicator M E STO RCL 2nd HYP ENG CPLX CONST DEGRAD BIN OCT HEX ( ) TAB STAT REG EDIT CPK USL LSL i 1/1 Meaning Running memory Result is negative Error Storing variable mode is active Recalling variable mode is active 2nd set of function keys are active Hyperbolic-trig function will be calculated Engineering symbol notation Complex number mode is active Display physics constants Angle mode : DEGrees, GRADs, or RADs Binary base Octal base Hexadecimal base Open parentheses Number of decimal places displayed is fixed Statistics mode is active Regression mode is active Statistics data is being edited CPK : Process capability CP : Precision capability Set upper specification limit Setting lower specification limit Imaginary part Allow to use undo function
General Guide Turning on or off
To turn the calculator on, press [ ON/C ] ; To turn the calculator off, press [ 2nd ] [ OFF ].

Battery replacement

SR-281 is powered by two alkaline batteries (GP76A or LR44). SR-282 is powered two AA-size ( UM-3 ) batteries. If the display becomes dim and difficult to read, the batteries should be replaced as soon as possible. To replace batteries : 1) 2) Slide the battery compartment cover in the direction indicated by the arrow and remove it. Remove the old batteries and install new ones with polarity in correct directions, then replace the battery compartment cover and press [ ON/C ].

Auto power-off function

This calculator automatically turns it off when not operated for approximately 6~9 minutes. It can be reactivated by pressing [ ON/C ] key and the display, memory, settings are retained.

Reset operation

If the calculator is on but you get unexpected results, press [ MODE ] [ 4 ] ( RESET ) in sequence. A message appears on the display to confirm whether you want to reset the calculator and clear memory contents. RESET : N Y Move the cursor to " Y " by [ ], then press [ ] to clear all variables, pending operations, statistical data, answers, all previous entries, and memory; To cancel the reset operation without clearing the calculator, please choose " N ". If the calculator is lock and further key operations becomes impossible, please press [ 0 ] [ CE ] at the same time to release the condition. It will return all settings to default settings.

Before Starting Calculation Using " MODE " keys
Press [ MODE ] to display mode menus when specifying an operating mode ( " 1 MAIN ", " 2 STAT ", " 3 CPLX ", " 4 RESET " ) or the engineering symbol notation ( " 5 ENG " ). 1 MAIN : 2 STAT : Use this mode for basic calculations, including scientific calculations and Basen calculations. Use this mode to perform singlevariable and pairedvariable statistical calculations and regression calculations. Use this mode to perform complex number calculation. Use this mode to allow engineering calculations utilizing engineering symbol.
], an entry which is just When a character which is just deleted by [ cleared [ CE ], or which is just cleared by [ ON/C ], the " " indicator shown in the display is to tell you that you can press [ 2nd ] [ ] to cancel the operation.

Replay function

This function stores operations that just have been executed. After execution is completed, pressing [ ] or [ 2nd ] [ ] key will display the operation executed. Pressing [ ] will display the operation from the beginning, with the cursor located under the first character. Pressing [ 2nd ] [ ] will display the operation from the end, with the cursor located at the space following the last character. ] or [ 2nd ] [ ] and You can continue moving the cursor by [ editing values or commands for subsequent execution.

3 CPLX : 5 ENG :

4 RESET : Use this mode to perform reset operation.

Memory calculation

Memory variable The calculator has nine memory variables for repeated use -- A, B, C, D, E, F, M, X, Y. You can store a real number in any of the nine memory variables. [ STO ] + [ A ] ~ [ F ], [ M ], [ X ] ~ [ Y ] lets you store values to variables. [ RCL ] + [ A ] ~ [ F ], [ M ], [ X ] ~ [ Y ] recalls the value of the variable. [ 0 ] [ STO ] + [ A ] ~ [ F ], [ M ], [ X ] ~ [ Y ] clears the content to a specified memory variable. (1) Put the value 30 into variable A
30 [ STO ] [ A ] 30 A 30.
Give " 2 STAT " as an example : Method 1 : Press [ MODE ] and then scroll through the menus using [ ] or [ 2nd ] [ ] until " 2 STAT " is underlined, then enter the desired mode by pressing [ ]. Method 2 : Press [ MODE ] and then key in directly the number of the mode, [ 2 ] , to enter the desired mode immediately.
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.

Corrections

If you have made a mistake when entering a number (but you have not yet pressed an arithmetic operator key), just press [ CE ] to clear the last entry then input it again, or delete individual digits by the backspace key [ ], or clear all entry by [ ON/C ]. After making corrections, input of the formula is complete, the answer can be obtained by pressing [ ]. You can also press [ ON/C ] to clear the immediate results completely (except clearing memory). If you press the wrong arithmetic operation key, just press the correct key to replace it.

(2) Multiple 5 to variable A, then put the result into variable B
5 [ x ] [ RCL ] [ A ] [ ] 5 A= 150. [ STO ] [ B ] 15 0

DEG DEG

B 150.

Undo function

The unit offers an undo function which allows you to undo some of the errors you just have made. 2/2
(3) Clear the value of variable B

0 [ STO ] [ B ] 0 B 0.

[ RCL ] [ B ] [
Type A functions which are required entering values before 2 pressing the function key, for example, x ,1/x, , x!, %, RND, ENG, , , x ', y '. x ,
Running memory You should keep the following rules in mind when using running memory. Press [ M+ ] to add a result to running memory and the " M " indicator appears when a number is stored in the memory. Press [ MR ] to recall the content of running memory. Recalling from running memory by pressing [ MR ] key does not affect its contents. Running memory is not available when you are in statistics mode. The memory variable M and running memory utilize the same memory area. In order to replace the content of the memory with the displayed number, please press [ X M ] key. To clear the content of running memory, you can press [ 0 ] [ X M ], [ CE ] [ X M ] or [ 0 ] [ STO ] [ M ] in sequence. [ ( 3 x 5 ) + ( ) + ( x 7 ) ] = 41

0[X M]

Type B functions which are required pressing the function key 1 before entering, for example, sin, cos, tan, sin , cos , tan _, 1 sinh, cosh, tanh, sinh , cosh , tanh , log, ln, FRAC, INT, , X X 3 , 10 , e , NOT, EXP, DATA in STAT mode. + / , NEG nPr, nCr x,

7) 8) 9)

10) +, 11) AND, NAND -- only Basen mode 12) OR, XOR, XNOR --- only Basen mode

Accuracy and Capacity

Output digits : Up to 12 digits. Calculating digits : Up to 14 digits In general, every reasonable calculation is displayed up to 12 digits 99 mantissa, or 12-digits mantissa plus 2-digits exponent up to 10. Numbers used as input must be within the range of the given function as follow :
0. 3 [ x ] 5 [ M+ ] 56 [] 7 [ M+ ] 74 [ ] 8 [ x ] 7 [ M+ ]

7 M+ 18.

[ MR ] M
Functions sin x cos x tan x
Input range Deg : Rad : Grad :
x < 4.5 x deg x < 2.5 x rad x < 5 x grad x 90 (2n+1)

however, for tan x

Deg : Rad :
x 2 (2n+1) Grad : x 100 (2n+1), (n is an integer) x x
(Note) : Besides pressing [ STO ] or [ X M ] key to store a value, you can also assign values to memory variable M by [ M+ ]. However, when [ STO ] [ M ] or [ X M ] is used, previous memory contents stored in variable M are cleared and replaced it with the newly assigned value. When [ M+ ] is used, values is added to present sum in memory.
sin 1 x, cos 1 x tan 1 x sinh x, cosh x tanh x sinh 1 x cosh

x < 1 x 10 100

230.2585092
x < 1 x x < 5 x 10 99

1 x < 5 x x

Order of operations
Each calculation is performed in the following order of precedence: 1) Fractions 2) Expression inside parentheses. 3) Coordinates transformation ( P R , R P ) 3/3

tanh 1 x

x <1

log x, ln x 10 x e

1 x x < 1 x 1 x 10

< x < 100

nPr, nCr STAT
0 r n, n 10 100, n,r are integers.

< 1 x 10

1 x < x 230.2585092

x x2 x

0 x < 1 x 10
x, y, x , y ,a, b, r : n 0 ; Sx, Sy : n 0, 1 ; x n = 50 ; y n = 50 ; Number of repeats 255, n is an integer. DEC BIN 2147483648 X 2147483647
0 X 01111111111111111111111111111111
x < 1 x x < 2.15443469003 x x < 1 x 10 100, x 0 x < 1 x 10
(for zero, positive) 10000000000000000000000000000000 X 11111111111111111111111111111111 (for negative) OCT 0 X 17777777777 (for zero or positive) 20000000000 X 37777777777 (for negative) HEX 0 X 7FFFFFFF ( for zero or positive) 80000000 X FFFFFFFF (for negative)

X! R P P R

0 x 69, x is an integer.

x 2 + y 2 < 1 x 10

0 r < 1 x Deg < 4.5 x 10 deg Rad < 2.5 x 10 rad Grad < 5 x 10 grad however, for tan x Deg 90 (2n+1) Rad (2n+1) 2 Grad 100 (2n+1), (n is an integer)
D, M, S < 1 x 10 100, 0 M, S

Error conditions

Error message E will appear on the display and further calculation becomes impossible when any of the following condition occur. 1) 2) 3) 4) 5) You attempted to divide by 0 When allowable input range of function calculations exceeds the range specified When result of function calculations exceeds the range specified When the [ ( ] key is used more than 13 levels in a single expression When USL < LSL value

xy x > 0 : 1 x 10 x=0:y>0 x < 0 : y = n, 1/(2n+1), n is an integer. but 1 x 10100 <

< y log x < 100

To release the above errors, please press [ ON/C ].

1 log x < 100 y

Basic Calculations
Use MAIN ( [ MODE ] 1 ( MAIN ) ) mode for basic calculations.
y > 0 : x 0, 1 x 10 y=0:x>0

1 log y < 100 < x

Arithmetic calculation
Arithmetic operations are performed by pressing the keys in the same sequence as in the expression. 7 + 5 x 4 = 27

7[+]5[x]4[ ] 7 + 5

y < 0 : x=2n+1, l/n, n is an integer.(n0) log y< 100 but 1 x 10 < x Input : Total of integer, numerator and denominator must be within 12 digits (includes division marks) Result : Result displayed as fraction for integer when integer, numerator and denominator are less than 1 x 10 12

4= 2 7.

For negative values, press [ +/ ] after entering the value; You can enter a number in mantissa and exponent form by [ EXP ] key. 2.75 x 10
120 [ x ] 30 [ 2nd ] [ % ] [

3 0%= 36.

= 0.0000275

2.75 [ EXP ] 5 [ +/ ] [

55 % = 160
] 55 [ 2nd ] [ % ] [ ] 8 8

2. 7 5E05= 0.5

5 5%= 1 60.
Results greater than 10 exponential form.

or less than 10

are displayed in
12369 x 7532 x 74103 = = 6.90368061272 x 10
12369 [ x ] 7532 [ x ] 74103 [ ]

Display notations

7532 7
The calculator has the following display notations for the display value.
Fixed-point / Floating Notations

Parentheses calculations

Operations inside parentheses are always executed first. SR-281 / SR-282 can use up to 13 levels of consecutive parentheses in a single calculation. Closed parentheses occurring immediately before operation of the [ ) ] key may be omitted, no matter how many are required. 2 x { 7 + 6 x ( 5 + 4 ) } = 122

2[(]7[+]6[(]5[+]4[ ] 2

To specify the number of decimal places, press [ 2nd ] [ TAB ] and then a value indicating the number of places ( 0~9 ). Values are displayed rounded off to the place specified. To return floating setting, press [ 2nd ] [ TAB ] [ ].

Scientific Notation

To change the display mode between floating and scientific notation, press [ FE ].

Engineering Notation

( 7 +6

( 5+4= 122.

Pressing [ ENG ] or [ 2nd ] [ ] will cause the exponent display for the number being displayed to change in multiples of 3. 6

7 = 0.85714285714

]7[ ] =
(Note) : A multiplication sign " x " occurring immediately before an open parenthesis can be omitted. The correct result cannot be derived by entering [ ( ] 2 [ + ] 3 [ ) ] [ EXP ] 2. Be sure to enter [ x ] between the [ ) ] and [ EXP ] in the below example. ( 2 + 3 ) x 10 = 500

[ ( ] 2 [ + ] 3 [ ) ] [ x ] [ EXP ] 2 [ ]
0.4 [ 2nd ] [ TAB ] 7 = 0.[ 2nd ] [ TAB ] 7 = 0.[ 2nd ] [ TAB ] [ ] =

DEG DEG TAB DEG TAB

( 2 + 3 )

1E02= 50 0.

Percentage calculation
[ 2nd ] [ % ] divides the number in the display by 100. You can use this key sequence to calculate percentages, add-ons, discounts, and percentage ratios. 120 x 30 % = 36

0.4 [ FE ] =

[ ENG ]
ln 7 + log 100 = 3.94591014906
857. 3 [ 2nd ] [ ] [ 2nd ] [ ]
[ ln ] 7 [ + ] [ log ] 100 [

l n 7 + l og100 3.6

10 + e

= 100.006737947

Engineering Symbol Notation
[ 2nd ] [ 10 X ] 2 [ + ] [ 2nd ] [ e X ] 5 [+/][ ]

10 ^ 2 + e ^ 5 = 0.7

Each time you specify the ENG mode, a displayed result is automatically shown with the corresponding engineering symbol.
12 Y = 10 , Z = 10 , E = 10 , P = 10 , T = 10 , G = 6 M = 10 , K = 10 , m = 10 , = 10 ,

Fraction calculation

Fraction value display is as follow : Display of

9 mega

12 p = 10 ,

12 Display of 56

18 a = 10 ,

21 z = 10 ,

24 y = 10
Perform the following operation to specify engineering symbol notation. [ MODE ] 5 ( ENG ) To exit from this mode, press [ MODE ] 5 once again. = 0.85714285714

ENG DEG

(Note): Values are automatically displayed in decimal format whenever the total number of digits of a fractional values ( integer + numerator + denominator + separator marks ) exceeds 12. To enter a mixed number, enter the integer part, press [ a b/c ], enter the numerator, press [ a b/c ], and enter the denominator ; To enter an improper fraction, enter the numerator, press [ a b/c ], and enter the denominator.

[ MODE ] 5

8 + 14 = 7 21
7 [ a b/c ] 2 [ a b/c ] 3 [ + ] 14 [ a b/c ] ] 5 [ a b /c ] 7 [

7. 3 [ ENG ]

42. 4 3

[ 2nd ] [ ] [

] [ 2nd ] [

] [ 2nd ]

During a fraction calculation, if the figure is reducible, a figure is reduced to the lowest terms after pressing a function command key ] ) or the [ ] key. By pressing [ 2nd ] ( [ + ], [ ], [ x ] or [ [ d/e ], the displayed value will be converted to the improper fraction and vice versa. To convert between a decimal and fractional result, press [ a b/c ].

9 = 4 = 4.5 = 2

Scientific Functional Calculations
Use MAIN ( [ MODE ] 1 ( MAIN ) ) mode for scientific function calculations.
4 [ a b /c ] 2 [ a b /c ] 4 [

4 = 2.

Logarithms and Antilogarithms
The calculator can calculate common and natural logarithms and x x anti-logarithms using [ log ], [ ln ], [ 2nd ] [ 10 ], and [ 2nd ] [ e ].

[ a b /c ]

4 = 4.5

[ 2nd ] [

d /e ]
Sexagesimal figure value display is as follow :
Represent 125 degrees (D), 45 minutes(M), 30.55 seconds(S)
Calculations containing both fractions and decimals are calculated in decimal format. + 3.75 = 12.55 5
8 [ a b/c ] 4 [ a b/c ] 5 [ + ] 3.75 [ ]
(Note) : The total digits of D, M and S and separator marks must be within 12 digits, or the sexagesimal couldn't be shown completely. l ll 12.755 = 18

12.755 [ 2nd ] [ ]

2[ 1 2.5 5

45 10.5 = 2.75291666667

] 45 [ ] 10.5 [ ]

5+3. 7 5=

Angle unit conversions
The calculator enables you to convert an angle unit among degrees(DEG), radians(RAD), and grads(GRAD). The relation among the three angle units is : 180 =rad = 200 grad 1) To change the default setting to another setting, first press [ 2nd ] [ DRG ] key repeatedly until the angle unit you want is indicated in the display. After entering a value, press [ 2nd ] [ DRG ] repeatedly until the unit you want is displayed. 90 deg. = 1.57079632679 rad. = 100 grad.

[ 2nd ] [ DRG ]

Trigonometric / Inverse-Tri. functions
SR-281 / SR-282 provides standard trigonometric functions and 1 inverse trigonometric functions - sin, cos, tan, sin , cos and tan.
(Note) : When using those keys, make sure the calculator is set for the angle unit you want. sin 30 deg.= 0.5

[ sin ] 30 [ ]

s i n 30= 0.5

cos ( rad) = 1.5 3

0. 90 [ 2nd ] [ DRG ] 9 0
3 [ cos ] [ ( ] 2 [ x ] [ 2nd ] [ ] [ ] 3[

c o s ( 2

3= 1.5

0.5 = 90 deg

1.9 [ 2nd ] [ DRG ]
3 [ 2nd ] [ sin 1 ] 0.5 [

s i n 1 0. 5 = 90.

1. 100.
Hyperbolic / Inverse-Hyp. functions
SR-281 / SR-282 uses [ 2nd ] [ HYP ] to calculate the hyperbolic 1 functions and inverse-hyperbolic functions - sinh, cosh, tanh, sinh , cosh and tanh.

0.6977011 xm 0.11104218 xm 3.1678852 xkg 2.8471546 xJ 1.8939631 1.32140984710 xm

m mc 2 m/mp

2.42631021518 xm 386.159264228 x10

0.66524585415 xm2

10 / 10
92. 93. 94. 95. 96. 97. 98. 99. 100. 101. 102. 103. 104. 105. 106. 107. 108. 109. 110. 111. 112. 113. 114. 115. 116. 117. 118. 119.
Proton Compton wavelength over 2 pi Proton mass Proton mass energy equivalent Protonneutron mass ratio Proton charge to mass quotient Proton magnetic moment Shielded proton magnetic moment Proton magnetic moment to nuclear magneton ratio Protonneutron magnetic moment ratio Shielded proton magnetic moment to Bohr magneton ratio Proton gyromagnetic ratio Shielded proton gyromagnetic ratio Proton magnetic shielding correction Proton gfactor Neutron Compton wavelength Neutron Compton wavelength over 2 pi Neutron mass Neutron mass energy equivalent Neutron magnetic moment Neutron magnetic moment to Bohr magneton ratio Neutron gfactor Neutron gyromagnetic ratio Deuteron mass Deuteron mass energy equivalent Deuteron molar mass Deuteronelectron mass ratio Deuteronproton mass ratio Deuteron magnetic moment

mp mpc 2 mp/mn e/mp

p 'p p/N p/n 'p/B p 'p 'p
0.21030890892 xm 1.6726215813 x10
1.5032773112 xJ 0.99862347856 9.5788340838 xC kg 1 1.41060663358 xJ T 1 1.41057039959 xJ T 1 2.79284733729

1.4598980534

1.52099313216 x2.6752221211 xs 1 T 1 2.6751534111 xs 1 T 1 25.68715 x10
5.58569467557 1.31959089810 xm 0.21001941422 x10 1.6749271613 x10

mn mnc 2

1.5053494612 xJ

0.9662364023xJ T 1

Deuteron magnetic 120. moment to Bohr magneton ratio Deuteron magnetic 121. moment to nuclear magneton ratio Deuteronproton 122. magnetic moment ratio 123. Helion mass Helion mass energy 124. equivalent 125. Helion molar mass Helionelectron mass 126. ratio 127. Helionproton mass ratio Shielded helion magnetic 128. moment Shielded helion magnetic 129. moment to Bohr magneton ratio Shielded helion magnetic 130. moment to nuclear magneton ratio Shielded helion 131. gyromagnetic ratio 132. Alpha particle mass Alpha particle mass 133. energy equivalent 134. Alpha particle molar mass Alpha particle to electron 135. mass ratio Alpha particle to proton 136. mass ratio

d/B d/N d/p

0.46697545565 x0.85743822849 0.30701220835 5.0064117439 xkg 4.4995384835 xJ 3.01493223470x10 3kg mol1 5495.88523812 2.99315265851
1.07455296745 xJ T1 1.15867147414 x2.12749771825
mh mhc 2 M(h) mh/me mh/mp

'h 'h/B 'h/N 'h

2.03789476485 xs 1 T 1 6.6446559852 xkg 5.9719189747 xJ 4.00150617471 x103 kg mol1 7294.29950816 3.97259968461

m mc 2 M() m/me m/mp

To insert a constant at the cursor position :

1.0418756325 x10 3

3.8260854590

1. 2. 3.

1.8324718844 xs 1 T 1 3.3435830926 xkg 3.0050626224 xJ 2.01355321271x103 kg mol 1 3670.48295508 1.99900750083 0.43307345718 xJ T 1
Press [ CONST ] to display the physics constants menu. ] or [ 2nd ] [ ] until the constant you want is Press [ underlined. Press [ ].
md mdc 2 M(d) md/me md/mp
You also can use the [ CONST ] key in combination with a number, 1 through 136, to recall a physical constants. For example, press 15 [ CONST ].
3 x NA = 1.80664259841 x 10

11 / 11

3 [ x ] [ CONST ] [ CONST ] [ [ ] [ ]
[ 2nd ] [ OCT ] 37 l p t p

6. 4 7

7 [ 2nd ] [ DEC ]

008 : [ ][ ]

CONST DEG 24

3 1. [ 2nd ] [ HEX ]

DEG HEX
Block Function BaseN calculations
Use MAIN ( [ MODE ] 1 ( MAIN ) ) mode for Basen calculations.
For a result in binary base, it will be displayed using block function. The maximum of 32 digits are displayed in 4 blocks of 8 digits.
Indicates Block 4 presently displayed Indicates Block 3 presently displayed Indicates Block 2 presently displayed Indicates Block 1 presently displayed

DEG BIN

The unit enables you to calculate in number base other than decimal. The calculator can add, subtract, multiply, and divide binary, octal, and hexadecimal numbers. The following shows the numerals that can be used in each number base. Binary base ( b ) : 0, 1 Octal base ( o ) : 0, 1, 2, 3, 4, 5, 6, 7 Decimal base : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 Hexadecimal base ( h ) : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F To distinguish the A, B, C, D, E and F used in the hexadecimal base from standard letters, they appear as shown in the below.

11010011 b

Indicates total blocks : 1 block Indicates total blocks : 2 blocks Indicates total blocks : 3 blocks Indicates total blocks : 4 blocks
The block function comprises upper and lower block indicators. The upper indicator means current block position, and the lower indicator means total blocks for a result. In the binary base, the block 1 is displayed immediately after calculation. Other blocks ( block 2 ~ block 4 ) are displayed by ]. pressing [ For example, input Press [ 2nd ] [ HEX ] 47577557
Indicates Block 1 presently displayed

Key A B C

Display Display Display Display Key (Upper) (Lower) (Upper) (Lower) /A IB

ID IE IF

[ 2nd ] [ BIN ]

01010111 b

Indicates Block 2 presently displayed
Select the number base you want to use with [ BIN ], [ OCT ], [ DEC ], [ HEX ]. The " BIN ", " b ", " OCT ", " o ", " HEX ", " h " indicators show you which number base you are using. If none of the indictors appears in the display, you are in decimal base.

b 01110101

Bases conversions
37 (base 8) = 31 (base 10) = 1F (base 16)

12 / 12

Indicates Block 3 presently displayed
Press [ MODE ] 2 ( STAT ) to enter STAT mode. There are six items in STAT mode, asking you to select one of them,

DEG STAT

b 01010111
Indicates Block 4 presently displayed

1VAR LIN LOG

EXP PWR DCL
Singlevariable statistics

b 01000111

1VAR Singlevariable statistics
Paired-variable / Regression statistics
= Block 4 + Block 3 + Block 2 + Block 1 = 01000111010101110111010101010111 2
Basic arithmetic operations for bases

1IEIF 16 + = 1170 8

DEG OCT

LIN LOG EXP POW

Linear Regression Logarithmic Regression Exponential Regression Power Regression Clear all statistical data
y=a+bx y = a + b lnx bx y=ae b y=ax
[ 2nd ] [ HEX ] 1E F [ + ] [ 2nd ] ] [ 2nd ] [ BIN ] [ DEC ] 1234 [ ] [ 2nd ] [ OCT ] 1001 [

h 1 IE IF + b 7 0

Negative expressions
In binary, octal, and hexadecimal bases, the calculator represents negative numbers using complement notation. The complement is the result of subtracting that number from 10000000000 in that number's base by pressing [ NEG ] key in non-decimal bases. 3/A 16 = NEG IFIFIFIFIFIFIC6 16
[ 2nd ] [ HEX ] 3 A [ NEG ] NEG

Entering data

Always make sure you clear statistical data by DCL before performing statistical calculations. (A) To input singlevariable data using the following syntaxes : # #

h 3 /A F F FFFFC6

Individual data : [ DATA ] < x value > Multiple data of the same value : [ DATA ] < x value > [ x ] < Number of repeats >
(B) To input pairedvariable / regression data using the following syntaxes : # # Individual data-set : [ DATA ] < x value > [ ] < y value > Multiple data of the same value : [ DATA ] < x value > [ ] < y value > [ x ] < Number of repeats >

Logical operation

Logical operations are performed through logical products (AND), negative logical (NAND), logical sums (OR), exclusive logical sums (XOR), negation (NOT), and negation of exclusive logical sums (XNOR). AND ( /A 16 OR ) = 12 8
[ 2nd ] [ BIN ] 1010 [ AND ] [ ( ] [ 2nd ] ] [ 2nd ] [ HEX ] A [ OR ] 7 [ ) ] [ [ OCT ]
(Note) : Even you exit STAT mode, all data are still retained unless you clear all data by selecting D-CL mode.

Displaying results

b AND ( h 012
The values of the statistical variables depend on the data you input. You can recall them by the key operations shown in the below table.

Singlevariable statistics calculations

Statistical Calculations

Use STAT ( [ MODE ] 2 ( STAT ) ) mode for statistical calculations.
Variables n([n]) x ( [2nd]+[ x ] ) Sx ( [2nd]+[ Sx ] )

13 / 13

Meaning Number of the x values entered Mean of the x values Sample standard deviation of x values
The calculators can perform both singlevariable calculations and pairedvariable in this mode.

statistical

x ( [2nd]+[
Population standard deviation of x values

x ([ x ] ) y ([ y ] )

Estimated value of x Estimated value of y
x ] ) Sum of all x values
x ( [2nd]+[ x 2 ]) Sum of all x values
CP ( [2nd]+[ CP ] ) Potential capability precision of the x values Minimum (CPU, CPL) of the x values, where CPU is upper spec. limit of capability CPK ( [CPK] ) precision and CPL is lower spec. limit of capability precision CPK = Min ( CPU , CPL ) = CP ( 1 Ca )
Paired-variable statistics / Regression calculations
You also can add a new data anytime. The unit automatically recalculates statistics each time you press [ DATA ] and enter a new data value. Enter data : USL = 95, LSL = 70, DATA 1 = 75, DATA 2 = 85, DATA = 81.8, 3 = 90, DATA 4 = 82, DATA 5 = 77, then find out n = 5, Sx = 6.05805249234, x = 5.41848687366, CP = 0.76897236513, and CPK = 0.72590991268

[ MODE ] 2

1V A R
Variables n([n]) x ( [2nd]+[ x ] )
Meaning Number of x-y pairs entered
[ ] [ DATA ] 75 [ DATA ] 85 [ DATA ] 90 [ DATA ] 82 [ DATA ] 77 [n] n D ATA
y ( [2nd]+[ y ] ) Sx ( [2nd]+[ Sy ( [2nd]+[

x ( [2nd]+[ y ( [2nd]+[

Mean of the x values or y values ] ) Sample standard deviation of x values or y ] ) values Population standard deviation of x values or y values

5. [ 2nd ] [ x ]

x ] ) y ] )
8 1.8 [ 2nd ] [ Sx ] S X 6.4 [ 2nd ] [ x ] x 5.6 [ 2nd ] [ CP ] 95
Sum of all x values or y values
x ( [2nd]+[ x 2 ]) y ( [2nd]+[ y 2 ]) x y
Sum of all x values or y values Sum of ( x y ) for all x-y pairs
CP ( [2nd]+[ CP ] ) Potential capability precision of the x values Minimum (CPU, CPL) of the x values, where CPU is upper spec. limit of capability CPK ( [ CPK ] ) precision and CPL is lower spec. limit of capability precision CPK = Min ( CPU , CPL ) = CP ( 1 Ca ) a ( [2nd]+[ a b ( [2nd]+[ b r ( [2nd]+[ r ]) ]) ]) Regression formula constant term a Regression formula regression coefficient b Correlation coefficient r

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USL= 95

] 70 L SL=

70 [ ] CP 0.3 [ CPK ] USL=

9 5. USL

] L SL=
To delete data that you have already stored by next pressing [ DATA ] , (A) To delete singlevariable data using the following syntaxes : # # < x value > [ 2nd ] [ DEL ] < x value > [ x ] < Number of repeats > [ 2nd ] [ DEL ]

( i ) + ( 15 + 12 i ) = 22 + 3 i , ab = 22.2036033112, ar = 7.76516601843

[ MODE ] 3

CPLX DEG
0. 7 [ ] 9 [ i ] [ + ] 15 [ + ] 12 [ i ] [ ]

a r 2 2.

Re [ ]

a r 3.i

The unit complies with the requirements of Directive 89/336/EEC as amended by 93/68/EEC

2 2.1 2

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