Operation Manual

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Table Of Contents

INSTRUCTION MANUAL

LCD−8210

Scientific Calculator

Key Layout

Rnd Ran# DRG %

yón

yón-1

xón

xón-1

78 9

654

12 3

Removing and Replacing the Calculator’s

Cover

 To remove the cover

Grasp the top of the cover, and slide the

unit out from the bottom.

 To Replace the cover

Grasp the top of the cover, and slide the

unit in from the bottom.

Always slide the unit into the cover with the unit’s

display end first. Never slide the keyboard end of

the unit into the cover.

Safety Precautions

Be sure to read the following safety precautions

before using the calculator. Keep this manual

handly for later reference.

ï Caution

This symbol is used to indicate information

that can result in personal injury or material

damage if ignored.

Batteries

 After removing the batteries from the cal-

culator, put them in a safe place where there

is no danger of them getting into the hands of

small children and accidently swallowed.

 Keep batteries out of the reach of small

children. If accidently swallowed, consult with

a physician immediately.

 Never charge batteries, try to take batte-

ries apart, or allow batteries to become shor-

ted. Never expose batteries to direct heat or

dispose them by incineration.

 Misuse of batteries can cause them to

teak acid that can cause damage to nearby

items and creates the possibility of fire and

personal injury.

 Always make sure that a battery’s

positive (+) and negative (−) sides

are facing correctly when you load it

into the calculator.

 Remove the batteries if you do not

plan to use the calculator for a long

time.

 Use only the type of batteries speci

fied for this calculator in this manual.

Disposing of the Calculator

 Never dispose of the calculator by burning

in. Doing so can cause certain components

to suddenly burst, creating the danger of fire

and personal injury.

 The displays and illustrations (such as key

markings) shown in this User’s Guide are for

illustrative purposes only, and may differ so-

mewhat from the actual items they represent.

 The contens of this manual are subject to

change without notice.

 In no event shall OLYMPIA" be liable to

anyone for special, collateral, incidental, or

cons−equential damages in connection with

or arising out for the purchase or use of

these materials. Moreover, OLYMPIA" shall

not be liable for any claim of any kind what-

soever against the use of these materials by

any other party.

Handling Precautions

 Be sure to press the Reset button on the

back of the calculator before using it for the

first time.

 Dead battery can leak, causing damage to

and malfunction of the calculator. Never

leave the dead battery in the calculator.

 The battery that comes with the unit di-

scharges slightly during shipment and sto-

rage. Because of this, it may require repla-

cement sooner than the normal expected

battery life.

 Low battery power can cause memory con-

tents to become corrupted or lost comple-

tely. Always keep written records of all im-

portant data.

 Avoid use and storage in areas subjected to

temperature extremes.

Very low temperatures can cause slow dis-

play response, total failure of the display,

and shortening of battery life. Also avoid

leaving the calculator in direct sunlight, near

a window, near a heater or anywhere else it

might become exposed to very high tempe-

ratures. Heat can cause discoloration or

deformation of the calculator’s case, and

damage to internal circuitry.

 Avoid use and storage in areas subjectede

to large amounts of humidity and dust.

Take care never to leave the calculator

where it might be splashed by water or ex-

posed to large amounts of humidity or dust.

Such elements can damage internal circui-

try.

 Never drop the calculator or otherwise sub-

ject it to strong impact.

 Never twist or bend the calculator.

Avoid carrying the calculator in the pocket

of your trousers or other tight−fitting clothing

where it might be subjected to twisting or

bending.

 Never try to take the calculator apart.

 Never press the keys of the calculator with

a ball−point pen or other pointed object.

 Use a soft, dry cloth to clean the exterior of

the unit.

If the calculator becomes very dirty, wipe it

off with a cloth moistened in a weak solution

of water and a mild neutral household de-

tergent. Wring out all excess moisture be-

fore wiping the calculator. Never use thin-

ner, benzine or other volatile agents to

clean the calculator. Doing so can remove

printed markings and damage the case.

Two−line Display

You can simultaneously check the calculation

formula and its answer. The first line displays the

calculation formula. The second line displays the

answer.

Before starting calculations.....

J Modes

Application Mode name Mode indicator

Calculation

modes

Normal cal-

culations

COMP −−

Standard de-

viation calcula-

tions

SD SD

Regression

calculations

REG REG

Base−n cal-

culations

(fx−85W only)

BASE−N b (binary)

o (octal)

d (decimal)

H (hexadeci-

mal)

Angle Unit

Modes

Degrees DEG

Radians RAD

Grads GRA

Display Mo-

des

Exponential

notation (Can-

celing FIX and

SCI specifica-

tion)

NORM 1

NORM 2

−−

Number of de-

cimal place

specification

FIX Fix

Number of si-

gnificant digit

specification

SCI Sci

Note!

 Mode indicators appear in the lower part of

the display, except for the Base−n indicators

which appear in the exponent part of the

display.

 The COMP, SD and REG modes can be

used in combination with the angle unit mo-

des.

 Be sure to check the current calculation

mode (SD, REG, COMP) and angle unit

mode (DEG, RAD, GRA) before beginning a

calculation.

J Input capacity

 The memory area used for calculation input

can hold 79 steps". Whenever you input

the 73rd step of any calculation, the cursor

changes from −−" to J to let you know

memory is running low. If you still need to

input more, you should divide your calcula-

tions into two or more parts.

J Making corrections during input

 Use and to move the cursor to the

location you want.

 Press to delete the number or function

at the current cursor position.

 Press to change to an insert cursor

. Inputting something while the insert cur-

sor is on the display inserts the input at the

insert cursor position.

 Press , , , or returns to

the normal cursor from the insert cursor.

J Replay function

 Pressing or recalls the last calcula-

tion you performed. You can then make any

changes you want in the calculation an re−

execute it.

 Pressing does not clear Replay me-

mory, so you can recall the last calculation

even after you press .

 Replay memory is cleared whenever you

start a new calculation, change to another

mode or turn off power.

J Error locator

 Pressing or after an error occurs

displays the calculation with the cursor posi-

tioned at the location where the error occu-

red.

J Exponential display formats

This calculator can display up to 10 digits. Larger

values are automatically displayed using expo-

nential notation. In the case of decimal values,

you can select between two formats that deter-

mine at what point exponential notation is used.

Press (or ) to select

NORM 1 or NORM 2.

 NORM 1

With NORM 1, exponential notation is automati-

cally used for integer values with more than 10 di-

gits and decimal values with more than two deci-

mal places.

 NORM 2

With NORM 2, exponential notation is automati-

cally used for integer values with more than 10 di-

gits and decimal values with more then nine deci-

mal places.

 All of the examples in this manual show cal-

culation results using the NORM 1 format.

J Answer memory

 Whenever you press after inputting va-

lues or en expression, the calculated result

is automatically stored in Answer Memory.

You can recall Answer Memory contents by

pressing .

 Answer Memory can store up to 12 digits

for the mantissa and two digits for the expo-

nent.

 Answer Memory contents are not changed

if the operation performed by any of the

above key operations results in an error.

Basic calculations

 Use the COMP mode for basic calculations.

Example 8.: 3x(5x10

−9

)

5 9

Example 9.: 5x(9+7)

9 7

Memory calculations

J Independent memory

 Values can be input directly into memory,

added to memory or subtracted from me-

mory. Independent memory is convenient

for calculating cumulative totals.

 Independent memory uses the same me-

mory area as variable M.

 To clear independent memory, input

or .

Example 1.: 23+9+(53−6)−(45x2), (Total)= −11

23 9

53 6

45 2

J Variables

 There are nine variables (A through F, M, X

and Y), which can be used to store data,

constants, results and other values.

Example 1.: 193.2 : 23 = 8.4

193.2 : 28 = 6.9

193.2 23

Fraction calculations

J Fraction calculations

 Use the COMP mode for fraction calcula-

tions.

 Values are automatically displayed in deci-

mal format whenever the total number of

digits of a fractional value (integer+numera-

tor+denominator+separator marks) exceeds

10.

Example 1.:

2 3 1 4

Example 2.:

1 2 1.6

 Fraction/decimal calculation results are al-

ways decimal.

J Decimal−to−fraction conversion

Example 1.:

2.75

12345

0.000000015

80.

32.

47.

90.

−11.

8.4

6.9

−−

2 7 15.

1.6+

−

2.1

2.75 >

−

2.75

2 3 4.

11 4.