Spreadsheets
CS 110
Fall 2005
Topics
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File extension (xls)
Toolbars
Basic and complex equations
Deleting and adding cells
Copying cell contents
Copying equations (absolute and relative)
Format cells
Cell borders
Graphs
An Online Tutorial with Quiz
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http://www.usd.edu/trio/tut/excel/inde
x.html
Recommended that you visit the page
Basic Idea
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Rows
Columns
Cells
Contents
• Text
• Numbers
• Relations (formulae)
Addressing Cells
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Columns labeled by letters
Rows labeled by numbers
Cells labeled by letter-number pairs
Contents
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Text
• Just type in value
• Can be used as values or just as labels
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Number
• Just type in value
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Relation/formula
• Calculate and display a value
• Starts with =
Basic Arithmetic Operators
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+
*
/
()
Selecting Cells
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Click
Drag
Control
Important Basic Functions
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SUM
AVERAGE
MAX, MIN
COUNT (how many cells contain
numbers)
COUNTA (also counts text entries)
More Arithmetic Operators
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<
<=
>
>=
=
<> (not equals)
IF
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IF(expression,value-if-true,value-iffalse)
IF(1=2,3,4)
IF(1<>2,3,4)
IF(B2>C2,0,1)
Lots of Functions
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Use Insert/Function to get a list
Financial
Trigonometric
Statistical
Etc.
Copying Formulae
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Use copy and paste
Formulae change to keep relative
meaning
Can also use “fill”
• Select formula
• Shift-select last cell
• Invoke edit/fill down, fill right
Absolute Positioning
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Putting $ before letter/number locks it
down
=$A$1+$B$1
Design for Readability
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Format text
Format number
Change column widths to fit
Inserting & Deleting Colums/Rows
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Select row or column
Go to Insert menu and select
function
Graphing/Charting
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Excel is a great tool for this purpose
Bar charts
Pie charts
Etc.
Use charting wizard