Spreadsheets CS 110 Fall 2005

Topics File extension (xls) File extension (xls) Toolbars Toolbars Basic and complex equations Basic and complex equations Deleting and adding cells Deleting and adding cells Copying cell contents Copying cell contents Copying equations (absolute and relative) Copying equations (absolute and relative) Format cells Format cells Cell borders Cell borders Graphs Graphs

An Online Tutorial with Quiz x.html x.html x.html x.html Recommended that you visit the page Recommended that you visit the page

Basic Idea Rows Rows Columns Columns Cells Cells Contents Contents TextText NumbersNumbers Relations (formulae)Relations (formulae)

Addressing Cells Columns labeled by letters Columns labeled by letters Rows labeled by numbers Rows labeled by numbers Cells labeled by letter-number pairs Cells labeled by letter-number pairs

Contents Text Text Just type in valueJust type in value Can be used as values or just as labelsCan be used as values or just as labels Number Number Just type in valueJust type in value Relation/formula Relation/formula Calculate and display a valueCalculate and display a value Starts with =Starts with =

Basic Arithmetic Operators + - * / () ()

Selecting Cells Click Click Drag Drag Control Control

Important Basic Functions SUM SUM AVERAGE AVERAGE MAX, MIN MAX, MIN COUNT (how many cells contain numbers) COUNT (how many cells contain numbers) COUNTA (also counts text entries) COUNTA (also counts text entries)

More Arithmetic Operators < <= <= > >= >= = <> (not equals) <> (not equals)

IF IF(expression,value-if-true,value-if- false) IF(expression,value-if-true,value-if- false) IF(1=2,3,4) IF(1=2,3,4) IF(1<>2,3,4) IF(1<>2,3,4) IF(B2>C2,0,1) IF(B2>C2,0,1)

Lots of Functions Use Insert/Function to get a list Use Insert/Function to get a list Financial Financial Trigonometric Trigonometric Statistical Statistical Etc. Etc.

Copying Formulae Use copy and paste Use copy and paste Formulae change to keep relative meaning Formulae change to keep relative meaning Can also use “fill” Can also use “fill” Select formulaSelect formula Shift-select last cellShift-select last cell Invoke edit/fill down, fill rightInvoke edit/fill down, fill right

Absolute Positioning Putting $ before letter/number locks it down Putting $ before letter/number locks it down =$A$1+$B$1 =$A$1+$B$1

Design for Readability Format text Format text Format number Format number Change column widths to fit Change column widths to fit

Inserting & Deleting Colums/Rows Select row or column Select row or column Go to Insert menu and select function Go to Insert menu and select function

Graphing/Charting Excel is a great tool for this purpose Excel is a great tool for this purpose Bar charts Bar charts Pie charts Pie charts Etc. Etc. Use charting wizard Use charting wizard