Built-in Calendar and Clock

Precautions

• Calendar, Schedule, Expense, and Clock modes allow you to

enter the desired date and time between Jan. 1, 1950 and Dec.

31, 2150.

• If an attempt is made to store an invalid time or date, you will not

be able to move the cursor to date entering, or store the time and

date by pressing x. Enter the correct value and press

Setting the Home Clock

1.If the display is in other mode or World Clock mode, press h to enter the Home Clock mode.

Note:

During the period of the Daylight Saving Time (summer time), set the DST ON beforehand as described on page 7, "Setting Daylight Saving Time ON/OFF".

2.Press e .

The Organizer will enter the clock setting mode.

x again.

• The Organizer has 43 cities according to the time zones

(see page 31).

hClock Mode

The Organizer has both Home Clock and World Clock modes. The display switches between Home and World clock each time h is pressed.

<HOME>

<WORLD>

NEW YORK

LONDON

1 1 2 0 0 3 WED

1 1 2 0 0 3 WED

1 2 : 0 0 : 0 0 AM

5 : 0 0 : 0 0 AM

3.Select your Home city using < or >.

City names can be edited, if necessary.

4.Press m to move the cursor to the Month position.

5.Enter the appropriate month.

Enter the day and then year in the same way.

6.Press m to move the cursor to the Hour position.

7.Enter the appropriate hour.

<HOME>

NEW YORK

0 1 0 1 2 0 0 3 WED 1 2 : 0 5 : 3 5 AM

<HOME>

NEW YORK

0 1 0 1 2 0 0 3 WED 1 2 : 0 5 : 3 5 AM

<HOME>

NEW YORK

0 1 2 4 2 0 0 3 WED

1 2 : 0 5 : 3 5 AM

Home Clock Mode

World Clock Mode

8.Enter the minutes and seconds in the same manner.

9.Select AM or PM using (.

6

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Sharp EL-6990 operation manual Built-in Calendar and Clock, Clock Mode, Precautions, Setting the Home Clock

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.