Chapter 2: General Information

Example

Key operations

Result

1000003=

j @J 13

 

[Floating point (NORM1)]

100000z 3e

33333.33333

[FIXed decimal point

@J 102

33333.33

and TAB set to 2]

 

3.33˚1004

[SCIentific notation

@J 113

and SIG set to 3]

 

33.33˚1003

[ENGineering notation

@J 122

and TAB set to 2]

 

 

[Floating point (NORM1)]

@J 13

33333.33333

 

 

 

31000=

j 3z 1000e

 

[Floating point (NORM1)]

0.003

[Floating point (NORM2)]

@J 14

3.˚10-03

[Floating point (NORM1)]

@J 13

0.003

 

 

 

Using Memories

The calculator uses global variable memories (A–Z and θ), local variable memories (maximum of nine variables per equation), and a last answer memory used when solving equations.

Using alphabetic characters

You can enter an alphabetic character (written in blue) when ALPHA is displayed at the top of the display. To enter this mode, press ;.

To enter more than one alphabetic character, press @ a to apply the alphabet-lock mode. Press ; to escape from this mode.

NORMAL MODE 0.

Using global variables

You can assign values (numbers) to global variables by pressing x then A–Z and θ.

Example 1

Store 6 in global variable A.

1.Press j 6 x A.

There is no need to press ; because ALPHA is selected automatically when you press x.

0. 6ÒA

6.

27

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Image 29
Sharp EL-5230 Using Memories, 6ÒA, Using alphabetic characters, Using global variables, Example Key operations Result

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.