Casio fx-85W Manual do utilizador - Página 3

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: "(Population Standard Deviation Gn}

ENE

xo) ER] 4, 316956719

(2) 3

[ ~

55.375

; afbaia

See

(acu) (t} tis

te. Bu

: es emma of Values Xa)

(rou) (1B

427.

"GD

[ 3 3

808.

° -(avithmetio Mean

: s im "ol i Bass of Values 5x2)

Data input Precautions

+ (07) (DT) inputs the same data twice.

* You'can also input multiple entries of the same data us-

'-ing & (3). To input the data 110 ten times, for example,

press 170 9 (3) 1007),

_* Thé above results cah be obtained in any order,and not

"necessarily that shown above.

¢ To delete data you have just neue press be @.

Regression Calculations (REG Mode):

8 'Piss (a8 (ie) (2) (fX-85W) to enter the REG mode and

' then select one of the ening eae

types. For

* other models, press few: (3),

;

. @: Linear regression -~

.., 2): Logarithmic regression

| / 01): Exponential regression

~ &) GQ): Power regression

(2) (2): inverse regression

__ (BIC): Quadratic regression |

. . Data input always starts with Es) a =] to clear statisti-

cal memory.

¢ The values produced by a regression calculation depend

on the values input, and results can be recalled using

' the key operations shown in the table below. --

Er Qaed, od

XOu-1

(Psat

( ¥Gn

Oued

ete POnr

ap.

wt] [A] | Regression coefficient A

Regression coefficient B | . . .

fr) [6] | Regression coefficient C

" ] (74 | Correlation coefficient r

Sen

«het

/ ¢ Example:

Asuna preadihevaampelatire.:

Aimospheric | Perform linear regression to deter-

Pressure_|

mine the regression formula terms

'and correlation coefficient for the

data nearby. Next, use the regres-

pheric pressure at 18°C and tem-

—/' perature at 1000 hPa.

Enter REG Mode (Linear Regression)

fx-B5W; (word 9 (2) OI

cee

cae

Other models: b=) (3) G1)

far) (Sc) EB (Memory Cleary"

100) 1003 6) 15 (3 1005 @7)

202] 10100 25 L2) 1014 'GD:

~30{2) 1014 GT

"997.4

(Regression Coefficient A)"

(Regression Coefficient B)

2 | 0982607368

1007.48.

(Gariéiation Coefficient ie

18 bi SY.

"1000 a GT [4642857143

(Atmospheric Pressure at 18°C)

(Temperature at 1000 hPa)

* Quadratic Regression

* The regression formula for quadratic regression is:

ye A+ By +x",

° .Input-data using the following key sequence.

<x-data> ©] <y-data> (07)

whe

* Example:

Perform quadratic. regression.to de-

termine the regression formula terms'

and Corrélation' coefficient for the data'

"Nearby. Next; use the regression. for-

:| mula'to estimate thé Values for 9° (es-

timated value of y) for x7 = 16 and ¥

eat nated value of x) for yi = 20,

; Enter REG mode (Quadratic regression)

Other models: fee) (3) (E) (33

sw] (Sel)

se;

se,

- 8

;

29 (5) 4; 6 oH 50(2} 23.5

7A ai 38.0 611103 (2) 46,4

ete (2 48. 0 [D:

(Regression Coefficient A}

cr] w

(Regression Coefficient 8) . ae

(Regression Coefficient co

(3 when x7 = 16)

< fi

16 Gai} 3 if

Sy whenyi=20) oss cern BO EHD Cae

Data Input Precautions ©

e (07) (57) inputs. the same data twice... :

e You can also input multiple entries ot ihe § same 'datau us

" jing Gil C7: To input the data "20 and Bs five times, for

: example, press 202] 30 GAC) 5 Gi

e The above results can be obtained in 7 order, and not

necessarily that shown above.

;

* To delete data you. have just input, press Ea (et) pe

* Formula memory lets you input a Single fornia in

memory, and then input: valu $ for the ' or

a's variables

_~ | Ptorcaiculate results."

".» Mémory can hold a' 'paige forttiula: up

to'79 steps iong.

«This function an be used in the COMP mode only.

x Note' that the formula is'actually st6red in memory wher

"you press the {) key in the sequence below.

+ sion formula to estimate -atmos-°

° rina ae To. save the: eee y formula, recall. it, and

Input treslotblason as qbaghe

fe) (Y) red SS) Bed OD G

3 foe x.

"Store. ii in memory.

'se

* Formula memory is cleared whenever you start'a-new

'calculation, change to another mode, or turn off power.

* In addition to decimal values, calculations can be per-

formed using binary, octal and hexadecimal values...

* You can specify the default number system to be ap-

"+ plied to all input and displayed values, and the number

~ system for individual values you input.

° You cannot use scientific functions in binary, octal, deci-

mal, and hexadecimal calculations. You cannot input val-

ues that include decimal part and an exponent.

° If you input a value that includes a decimal part, ne unit

automatically cuts off the decimal part.

* Negative binary, octal; and hexadecimal values are pro-

' duced by taking the two's complement.

* You can use the following logical operators ene

values, in Base-7 calculations:

and (logical product), 0

(logical" sum), Xor (exclusive k ical sum), xnor 'eich

sive logical sum negation), Not (negation), and Neg

(minus).

* The following are the allowable ranges for each 'of the

available number systems.

4900000000

14t4ttiit.

Binary

114199974

Octal

S 7777777777

3777777777

¢ = 2147483647

PFFFFFFF

7FFFFFFF

. : Example 1: 'To perform the eae calculation and

produce a binary result:

1014424

110106,

Binary mode -

A) Ca Cs)

110001.

° Example 2: To perform the following calculation and

produce an-octal result

» 7654— + Vip

asi) ae) (BH) (ZI (0) 7654,

_ Octal mode *

C2 G9 OCD o) 12

* Example 3:To perform the following aie and

produce ; a hexadecimal result:

: 120%6 or 11015

Rae

Hexadecimal mode

_ ea (nex)

40,5 toa) Ben

a) (oar) (3) (b)1 1015

(1081)

"hoa, minutes, and seconds, ang convert between

sexagesimal 'and decimal values. '

;

* Example t: To convert the decimal value 2.258 to a

sexagesimal value

2.258 Uae

2.258

__.2°15°28.8

* Example 2: To perform the following caiculation:.. ._-

12°34'56" X 3.45

fecreden

fet

12) 34 ES) 56 F)BBS.AB foc:

When you have a 2 PrObleM...n

If calculation results are not what you expect or rif an error

occurs, perform the following steps.

1. (iif) (7 (COMP mode)

2, Fx-QSW; fro (wor) (hor

(7)

.. Other models: (aor) (wo) GQ

mede,

3. FX-BSW: one: (cond (aac) faoae) (3)

gee"

«Other models: toed) (avg fase] C2] C9

(HORNET DAs)

4. Check the formula 3 you are working with to confirm it is

» correct:

5,. Enter theo correct modes to perform the calculation and

try again,

<fX-B82TLAX-B3WA/X-270W PLUS/fx-350TL>.

If the above steps do.not correct your problem, press. the

P button on the back of the calculator to reset it, Pressing

the P button deletes all data stored in calculator memory.

Make sure you ore keep written copies of all impor-

tant data

SX @5W/1K-B5WA/ ie 300W/tx-91 1W>

\f the above steps do not correct the probiem,-press the

[ot] kay. The calculator. performs a self-check operation and

deletes ail 'data: stored in memory if any abnormality is

detected. Make sure you ane keep written copies of all

important, data, 5

Error Messages

The calculator is locked up while an error message-is on

the display. Press (8 to clear the error, or press (i) or

to display the calculation and correct the problem, See "Er-

ror. Locator" for details,

* Calculation result is outside the allowable calculation

range.

¢ Atternpt to perform a function calculation using a value ::

that exceeds the allowable input range. 0

6 "* Attempt to Peron an ec ad bparalion: (division by °

"Zero, GI.)

2 Action

~* Check your input Values and make 'sure they are ail

within the allowable ranges. Pay Special'attention té

values in any memncn: areas Syoua are ven

Stk ERROR: a

* Cause

.° Papacy of

of the numeric stack or Scans Stack | iS 6X* ::

ceeded. -

Swseloe

e e

° Aétion

;

¢ Simplify the calculation. The numeric > slack has 10

levels and the operator stack has 24 levels.

* Divide your calculation inte two or more: fe Separate parts. 2

Syn ERROR"

2 Cause 0 bs:

4 Attempt to nerorne an nilega eathioination operation 7

¢ Action...

.* Press. (4) or i to 'diepey: the: calculation with, the ;

cursor Jocated at the location of the error. Make Nec: :

essary corrections.

Arg ERROR §:

* Cause

* Improper usé of sigumant =

* Action

_ * Press (4) or B) to display the /ocation of the cause eat.

_the error, and make required corrections. .

Ea Order of Operations | Se

Calculations are performed in-ihe following order oh prec-

edence.

@ Coordinate transformation: Pol (x, y), Ree (7, 0). .8 os

(2 Type A functions:

- With these functions, the values is enlerer and then the

- function key is rican

cae

x2 x

1 xl, ore,

@ Powers and roots: x, ay

@ aPle

oo Abbreviated multiplication, format i in front of,

memory

name, or variable name: 27, 5A, WA etc. .

® Type B functions:.

With these functions: the fuccione a is pressed: and

then the value is entered.

age

¥,

, Jog, In, e*, 10°, sin, cos, tan, sin™',

cos™',

tan", sinh, cosh, tanh; sinh=!; cosh !; j tans};

D Abbreviated multiplication format in front of "Type &

S Permutation and combination: nPrenr

@ x, +

+, —

* Operations of the same precedence are performed from

right to left. eInv™ 120 = e{In(v- 120)} *

rah

- Other operations are performed from left to right.

* Operations enclosed in parentheses are performed first.

Stacks

This calculator uses memory areas, called "stacks," to fem-

porarily store values (numeric stack) 'and comrnands:(com-

mand stack) according to their precedenéée during caicu-

lations. The numeric stack has 10 levels and the command

stack has 24 levels. A stack error (Stk ERROR) occurs

whénever you try to performa 'calculation that fs

is 80 com-

plex that the eapaciy ot a Een | is exoseded.

Power Supply" +

The type of batiery you should use depends on

number of your calculator."

< fx-85W/Tx-85WA/ fx-300W/tx-991W >

The TWO WAY POWER systém actually has two:power

supplies: 'a solar cell and a G13 Type (LR44) button bat-

tery Normally, calculators équipped with a solar cell alone

éan Operate only when relatively bright light is present.

The TWO WAY POWER system, however, léts you con-

tinue to use the calculator as long as there is enough light

to read the display.

¢ Replacing the Battery

Either of the following symptoms. dicate batory power

is low, and that the battery should be replaced.

. . . . , . :

__* Display figures are dim and difficult

ead i in: areas

where there is little light available. :

_ ® Nothing appears; on the display. winen. 'Ou press. the.

{Gi key.

° To shinee he 3 batten

G@>) Remove the six screws that-.6

hold the back cover in place .: .:

and then remove the aaek

cover.

—

Mts

3B. Remove 'the ola

@) Wipe off the sides of new ee

tery with a dry, soft cloth. Load

it into the unit with the posi-

tive @ side facing up" Md you :

'Gan-see it}.

Replace the back coverand: i s c ff ec

secure it in place with the Six, af.

screws.'

&) Press (i) to turn t power on. Ao

sure! not to skip this step. a

<fx-82TL>

This calculator is powered by single AA-s -size battery...

~ Dim figures on the display of the calculator indicate ihat

battery power is low. Continued use of the calculator

when the battery is low can result in improper operation.

' Replace the battery as soon as possible when display

~ figures becorne dim.

° To replace the battery °°"

@) Press G8 to turn power off,

@) Remove the'six screws that

hold the back 'cover in

." 'place and thet remove the

*.. back: cover.

@ Reiriove the old battery,

@) Load a new baitery into the

unit so it's positive ®.and

ing correctly. .

@ Replace the back cover

and secure it in place with

the six screws.

P button

to press the P. button. Be

sure not to skip this step.

@ Press &H to turn power on.