Sharp EL-6990 operation manual Entering Characters, Moving the Cursor, Making Corrections

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Entering Characters

Moving the Cursor

Move the cursor by pressing j, l, k, or m .

Entering Characters

1. Entering letters and numbers

The initial setting for entering letters is small (lowercase) letters. To enter capital (uppercase) letters, turn “CAPS” on by pressing $. To enter numbers, press each numeric key.

2. Entering graphic symbols and special characters

Key map for special characters

Key

Display

Key

Display

Key

Display

 

 

 

 

 

 

f 0

)

f 1

!

f 2

@

 

 

 

 

 

 

f 3

#

f 4

$

f 5

/

f 6

^

f 7

&

f 8

 

 

 

 

 

 

 

f 9

(

f ,

’

f

:

Other characters

Press sto display the symbol entry mode, allowing a total of 32 symbols and characters to be selected. To select the desired symbol/special character, press sthe appropriate number of times at the position where you would like to insert it.

Characters assigned to s:

Making Corrections

1. Inserting or Overwriting characters

Press i, once or twice, to insert or overwrite characters.

2. Deleting characters

ccan be used for deletion of data in Calculator mode and Rate figure in Conversion mode.

dand bcan be used for deletion of characters.

dcan also be used to delete listings.

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Contents EL-6990 Page If a malfunction occurs under abnormal conditions Using the Organizer for the First TimeTurning the key sound On and Off Auto Power Off FunctionAdjusting the LCD Contrast BacklightDisplay Symbols Display Symbols and Part NamesKey Assignments Part NamesMaking Corrections Entering CharactersMoving the Cursor Entering CharactersBuilt-in Calendar and Clock Clock ModePrecautions Setting the Home ClockNE W Y ORK Selecting the date format Default Month-Day-YearSetting Daylight Saving Time DST Summer time ON/OFF HomeAlarm AlarmTurning the Daily and Hourly Alarms ON/OFF Setting the Daily Alarm timeBUS I Ness Pers Onal Sear CH NA ME? Others Search NAME? Telephone ModeExample EntryBUS I Ness Search NAME? RST Name CompanyLast Name Alphabetical Search Calendar ModeSearch Navigating the Monthly Calendar DisplayDirectly go to the target month Schedule ModeAlarm no Alarm YESSequential search Date search Anniversary ModeSequential search To Do ModeTo do Descr I PT I onDone Completed Items 2AB3 4 5 6 Memo ModeMemo SEARCH? Direct SearchAtegory Expense ModeAmount Payment Check Expense Report CategoryExpense Summary ReportRecall Payment Check Rece I PT YESEdit Editing ListingsDeleting Listings Edit the CategoryENG SPA Word Translator ModeCAL Culat or Calculator ModeExample Operation Display Currency CAD USD RATE= Conversion ModeCurrency Conversion Mode Setting a new currency conversion rateConvert metric unit Metric Conversion ModeCurrency conversion Secret Function Registering a PasswordChanging the Password Accessing listings32K4 Game ModeBlackjack Twenty-one BlackjackAlpha Attack Level 0 EY3KW Alpha AttackBatteries used Type Model Quantity Use Battery ReplacementOperating Battery Replacement Battery replacement time Backlight Battery ReplacementReplacing the batteries SpecificationsPower supply Currency/Unit conversion modeGame mode Power consumptionExchanging Data with a PC AppendicesMemo Canada Sharp Corporation

EL-6990 specifications

The Sharp EL-6990 is a versatile scientific calculator that is particularly well-suited for students, engineers, and professionals who require advanced calculations for their daily tasks. It is known for its robust features, user-friendly design, and innovative technology, making it an invaluable tool in a variety of settings.

One of the primary features of the Sharp EL-6990 is its large 2-line display that provides a clear view of calculations and results. The dual-line feature allows users to input equations and see the results simultaneously, enhancing the user experience and reducing errors during complex calculations. The display is also capable of showing fractions, equations, and various other functions in a format that is easy to understand.

The calculator is equipped with a comprehensive range of built-in functions, including more than 400 scientific and statistical functions. This includes everything from basic arithmetic operations to advanced statistical calculations, such as standard deviation and regression analysis. Furthermore, the EL-6990 supports complex numbers and can perform operations with them, which is particularly beneficial for higher-level mathematics and engineering courses.

In addition to its wide array of mathematical functions, the Sharp EL-6990 also features programmable capabilities. Users can store previously calculated formulas and equations for quick access, allowing for increased efficiency when working on repetitive tasks. This programming function makes it a popular choice among both students and professionals who need to streamline their workflow.

The EL-6990 incorporates Sharp’s proprietary WriteView technology, which enables users to view and edit expressions in a format that replicates traditional mathematical notation. This feature makes it easier for users to input complex formulas and understand the relationship between inputs and outputs.

Another notable characteristic of the Sharp EL-6990 is its portability. Designed with a compact body, the calculator is lightweight and easy to carry, making it a convenient companion for students on the go. Its durable construction and user-friendly interface further enhance its appeal, making it suitable for extensive daily use.

In conclusion, the Sharp EL-6990 is a powerful scientific calculator, offering a range of features and technologies tailored to meet the needs of students and professionals alike. Its clear display, extensive function library, programmability, and innovative WriteView technology set it apart as a reliable choice for anyone looking to enhance their computational efficiency. Whether for classroom use, fieldwork, or extensive calculations, the EL-6990 is engineered to deliver performance and reliability.
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