123459=
123459.

Chapter 2: General Information

Editing and Correcting an Equation

Cursor keys

Incorrect keystrokes can be changed by using the cursor keys

(l r u d).

Example

Enter 123456 then correct it to 123459.

1.Press j 123456.

NORMAL MODE 0.

123456_

2. Press y 9 e.

0.

 

• If the cursor is located at the right end of an equation, the y key will function as a backspace key.

You can return to the equation just after

getting an answer by pressing the cursor keys. After returning to the equation, the following operations are useful;

@ l or @ r: To jump the cursor to the beginning or the end of equation.

Overwrite mode and insert mode

Pressing @ O switches between the two editing modes: overwrite mode (default); and insert mode. A rectangular cursor indicates preexisting data will be overwritten as you make entries, while a triangular cursor indicates that an entry will be inserted at the cursor.

In the overwrite mode, data under the cursor will be overwritten by the number you enter. To insert a number in the insert mode, move the cursor to the place immediately after where you wish to insert, then make the desired entry.

The mode set will be retained until @ O is pressed or a RESET operation is performed.

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Sharp EL-5250, EL-5230 Editing and Correcting an Equation, 123456, Cursor keys, Overwrite mode and insert mode

EL-5230, EL-5250 specifications

The Sharp EL-5250 and EL-5230 are advanced scientific calculators that cater to students, professionals, and anyone in need of a reliable tool for complex calculations. Both models are designed with a blend of functionality, portability, and user-friendliness, making them excellent choices for math and engineering tasks.

The Sharp EL-5250 is equipped with a wide range of features ideal for higher-level calculations. It supports over 500 functions, including trigonometric, exponential, logarithmic, and statistical computations. The calculator also includes built-in memory functions, allowing users to store and recall values effortlessly. The large, easy-to-read LCD display can present multiple lines of data simultaneously, enhancing clarity and reducing the need for repetitive calculations.

On the other hand, the EL-5230, while slightly less advanced, still offers a robust set of functions. This model is particularly well-suited for students in high school or early college, providing essential functionalities for algebra, geometry, and basic statistics. Its 240 functions cover a variety of mathematical disciplines, making it a versatile option for different educational needs.

Both calculators feature Sharp's unique "MathPrint" technology, which is a standout characteristic allowing users to view fractions, square roots, and other expressions in a format more akin to traditional textbook layouts. This technology greatly enhances comprehension and usability, particularly for visual learners.

The calculators are powered by dual power sources, utilizing both solar and battery power, ensuring reliability in diverse environments. The compact and lightweight design of the EL-5250 and EL-5230 makes them highly portable. Users can easily carry them in a backpack or briefcase without added bulk.

Durability is another aspect where Sharp excels. The calculators are built to withstand regular use, featuring a sturdy exterior. Additionally, Sharp provides a protective cover that helps prevent damage during transport, making these calculators a long-term investment for users.

In summary, both the Sharp EL-5250 and EL-5230 deliver exceptional performance with their extensive features and advanced technology. They are perfect for those who require reliable and efficient tools for various mathematical tasks, whether in education or professional settings. With their user-friendly designs and durability, these calculators continue to be reliable companions for anyone working with numbers.