Cursor basics, Performing standard math calculations – Sharp EL-9900 User Manual

Page 25

Chapter 2: Operating the Graphing Calculator

2. Performing standard math calculations

By utilizing the

+ - | and = keys, you can perform the standard

arithmetic calculations of addition, subtraction, multiplication, and division. Press
E to perform each calculation.

Example

Obtain the answer to “6

–

2”.

# C 6 | 5 + 3
- 2 E

With the

( and ) keys, parentheses (round brackets)

can be added to group sections of expressions. Sections within

the parentheses will be calculated first. Parentheses can also be

used to close the passings of values in various functions, such as

“round(1.2459,2)”.

Example

Obtain the answer to “(9

–

3)”.

# C ( 9 + 7
) | ( 5 - 3
) E

Note:

The multiplication sign “

”, as the one in the above example, can

be abbreviated if it proceeds a math function, a parenthesis “(”, or

a variable. Abbreviating “(1

3” to “(1

2) 3” will result in an

error.

Cursor Basics

The cursor indicates where the next entry will be placed. The cursor may be placed

automatically to different areas by various functions and tools, or can be moved

around by using the

; ' { } keys. Use the cursor keys to select a

menu item, select a cell item in a matrix, and trace along a graph.

Perform an

arithmetic

calculation

Using

parentheses

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02.8.23, 5:23 PM