Chapter 5: Advanced Calculations — Advanced Keyboard

xRaises a preceding value to the power of -1. If no value is preceded, then the cursor will be placed at the base.

_ Enters an ath root of a base. When a value precedes, then the value will be incorporated as the index number. Otherwise, both entry areas will be left blank.

+Enters a square root; sets the cursor at the base entry area.

$ Enters π (3.14…).

~Sets the following value as θ, assuming the preceding value is the radius of the polar coordinates.

# Enters i (representing -1), to make imaginary or combination numbers.

3. Calculations Using MATH Menu

The Advanced keyboard has considerably more MATH menu items to choose from than that of the Basic keyboard:

A CALC Contains sub-menu tools for advanced calculations. To access each sub-menu item, make sure that this A CALC menu item is selected. Pressing the 'cursor key will extend the cursor to the sub-menu items. Items can then be highlighted by scrolling with {, }, ;or ', and selected by pressing E, or simply use the short cut key stroke (i.e., select 01 by pressing 0and 1).

A sub-menu item with open parenthesis will need to be completed by the closing parenthesis; failure to do so will result in an error.

01 log2 log2 value

Enters a base-2

logarithm (log2).

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Sharp EL-9900 operation manual Calculations Using Math Menu, 01 log2 log2 value
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EL-9900 specifications

The Sharp EL-9900 is a remarkable scientific calculator that exhibits a fusion of advanced features, cutting-edge technology, and an ergonomic design tailored for both students and professionals. One of the standout characteristics of the EL-9900 is its extensive range of functions, boasting over 550 built-in calculations that cover various mathematical and scientific disciplines. This calculator is particularly popular among engineering and physics students due to its ability to handle complex calculations with ease.

One of the key features of the EL-9900 is its 2-line display, which allows users to view both the input and the result simultaneously. This dual display enhances usability, especially when dealing with intermediate steps in calculations. The calculator also includes a built-in 12-digit LCD screen, which ensures clarity and precision in reading numbers, making it easier for users to work for extended periods without straining their eyes.

The EL-9900 is equipped with a wide array of mathematical functions, including trigonometric, logarithmic, and exponential functions. Notably, it supports fraction calculations, statistical analyses, and unit conversions. Its advanced programming capabilities, such as 36 programmable functions and the ability to store data, further enhance its functionality, allowing users to create custom calculations tailored to specific needs.

One of the more modern technologies incorporated into the EL-9900 is its solar-powered function, which is complemented by a battery backup, ensuring that the device remains operable in varied lighting conditions. This environmentally friendly design reduces the need for frequent battery replacements, making it a cost-effective choice for users.

In terms of design, the Sharp EL-9900 boasts a slim profile and lightweight construction, which makes it portable and easy to carry. Its durable casing ensures that it can withstand the rigors of daily use, whether in a classroom setting or a professional environment.

Overall, the Sharp EL-9900 stands out as a versatile scientific calculator packed with features designed to meet the needs of students and professionals alike. Its robust functionality, clear display, and user-friendly design make it a reliable tool for anyone engaged in mathematical and scientific pursuits. Whether used for basic calculations or advanced problem-solving, the EL-9900 remains a powerhouse in the realm of scientific calculators.
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