Chapter 1: Before You Get Started

A Quick Tour

This section takes you on a quick tour covering the calculator’s simple arithmetic operations and also principal features like the solver function.

Turning the calculator on and off

1.Press j at the top right of the keypad to turn the calculator on.

To conserve the batteries, the calculator turns itself off automatically if it is not used for several minutes.

2.Press @ o to turn the calculator off.

NORMAL MODE 0.

Whenever you need to execute a function or command which is written in orange above a key, press @ followed by the key.

Entering and solving an expression

Arithmetic expressions should be entered in the same order as they would normally be written in. To calculate the result of an expression, press e at the bottom right of the keypad; this has the same function as the ‘equals’ key on some calculators.

Example

Find the answer to the expression 82 ÷ ￿￿3 – 7 -10.5

1. 8 A z @ * 3 -

 

 

 

 

 

 

NORMAL MODE

7 k S 10.5

• This calculator has a minus key -

0.

8Œ©‰3-7˚–10.5_

for subtraction and a negative key S

 

 

 

for entering negative numbers.

To correct an error, use the cursor keys

l r u d to move to the appropriate position on the display and type over the original expression.

2.Press e to obtain an answer.

While the calculator is computing an answer, BUSY is displayed at the above left of the display.

The cursor does not have to be at the end of an expression for you to obtain an answer.

0. 8Œ©‰3-7˚–10.5= 110.4504172

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Sharp EL-5250, EL-5230 operation manual Quick Tour, Turning the calculator on and off, Entering and solving an expression

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.