Chapter 7

Programming

PROG mode

A program enables you to automate a series of calculations, including those simple and complex. Programs are created either in the NORMAL program mode or in the NBASE program mode.

Entering the PROG mode

1.Press b 2to select the PROG (PROGRAM) mode.

2.Press 0to RUN a program, press

1to create a NEW program, press

2to EDIT a program, and press 3 to DELETE a program.

PROGRAM MODE ƒRUN ⁄NEW ¤EDIT ‹DEL

Selecting the NORMAL program mode or the NBASE program mode

Before creating a new program (b 21), select either the NORMAL program mode or the NBASE program mode.

In the NORMAL program mode, you can perform simple mathematical calculations and statistical operations. In the NBASE program mode, you can perform logical operations and calculations using N-base numbers.

Programming concept

It is not within the scope of this manual to describe how to write programs for the calculator in detail. Previous programming experience is required to read this section. The programming language for this calculator is similar to those in general use today.

All conventional computer and calculator programs use fundamental elements such as input, flow control, loops, calculation, and output. The programming language in your calculator includes commands that allow you to incorporate all of these fundamental elements into your programs. For the command list, refer to the ‘Programming Commands.’ (See page 79.)

Note:

Commands must be entered using the COMMAND menu (i). DO NOT type commands manually using the ;key.

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Sharp EL-5230 Programming, Entering the Prog mode, Selecting the Normal program mode or the Nbase program 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.