Sharp EL-9900 - Manual (Page 23)

13
Chapter 2
Operating the Graphing
Calculator
Basic / Advanced Keyboard
This calculator comes equipped with a reversible keyboard to support two different
keyboard configurations: Basic and Advanced keyboard. By reversing the keyboard,
the calculator switches its set of functions and behaviors as well as its visual aspect.
The Basic keyboard, with its key frame colored in dark green, is designed to be used
by students at lower grades of math classes. Functions associated with complex
calculations, such as matrix functions and various trigonometric functions, are not
included in this layout to avoid confusing students. Menu items are also carefully
chosen to meet the educational needs of the students at lower grades.
With the Advanced keyboard however, all functions and features are accessible for
higher grade math students and various professionals in the fields of architecture,
finance, mathematics, and physics.
How to switch the keyboard
See page 9.
Basic Key Operations - Standard Calculation Keys
The standard calculation keys, located at the bottom four rows of the keyboard,
enable you to access the basic functions of the calculator.