Chapter 3: Scientific Calculations

Solver Function

This function enables you to find any variable in an equation.

Entering and solving an equation

The solver function is used as follows.

1.Press b0to enter the NORMAL mode.

2.Enter both sides of an equation, using ‘=’ and variable names.

3.Press I5.

4.Enter the value of the known variables.

5.Move the cursor (display) to the unknown variables.

6.Press @h.

The solver function can find any variable anywhere in an equation. It can even find variables that appear several times in an equation.

You can use both global and local variables in your equation. (See page 58.)

NORMAL MODE 0.

TŒ=(4π©GM)R_

Equation entering display

Using the solver function will cause variables memory to be overwritten with new values.

To exit the solver function, press j.

Changing the value of variables and editing an equation

When you are in the solution display, press eto return to the display for entering values of variables, then return to the equation display in the NORMAL mode by pressing j.

R= 1.127251652

R¬ 9.

L¬ 9.

Solution display

 

 

 

 

 

 

 

 

 

 

 

TŒ=(4π©GM)R

 

G=z 1.5

e

j

 

Use duto

 

 

move between

 

 

variables.

 

NORMAL MODE 0.

TŒ=(4π©GM)R_

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Sharp EL-5250, EL-5230 operation manual Solver Function, TŒ=4πGMR, Entering and solving an equation

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.