1. Microsoft Excel 2007 © Wiley Publishing. 2007. All Rights Reserved. The L Line The Express Line to Learning L Line

2. Understanding Excel Formulas 4 Understanding basic formulas Understanding absolute cell references Determining Excel options for formulas Using the Function Wizard Adding formulas to multiple worksheets Using data from multiple worksheets Learning about other functions Naming ranges and formulas Stations Along the Way

3. Understanding Formulas Formulas begin with an equal sign They can include values, cell references, and range names They include one or more operators: Examples of basic formulas: Addition + Multiplication * Exponentiation ^ Subtraction - Division / Percent % =A1+A2=G27*(1+E12)=C35/3 =B4-5=SALES-COGS=A10^2

4. Creating Formulas Use the AutoSum button (Home tab) Type a formula directly into a cell Use an absolute address in a formula if you want it to always refer to a cell Use a relative address in a formula if you want it to adjust when copied Use AutoFill to quickly copy formulas

5. Setting Formula Options Most settings are in the Excel Options window Specify whether calculations should be automatic (default) or manual Press F9 to update formulas manually Formula AutoComplete assists with formula entry Error-checking rules watch for formula entry errors

6. Using the Function Wizard Functions are Excel’s built-in formulas Function Wizard (Insert Function button) provides most efficient method of creating formulas and functions Divided into multiple categories of related functions Functions include one or more arguments within parentheses

7. Using Formulas with Multiple Worksheets Group sheets to copy/paste or enter formulas in multiple sheets at one time Type formulas or use Function Wizard to create formulas across worksheets Formulas should include sheet name, exclamation point, and cell reference: Review and edit formulas as needed =North!C3+South!C3+West!C3

8. Function Categories Choose from Function Library on Formulas tab or Insert Function button Function categories include: Logical – make data comparisons Text – manipulate text strings Date & Time – work with dates and times Lookup & Reference – perform lookups

9. Naming Ranges and Formulas Assign range names to cells or ranges used in formulas Enable others to understand how formulas are structured Assign a name before or after entering a formula Use Apply Names dialog box to assign names to ranges in existing formulas

10. Discussion Questions What is a formula? How can a formula save you time? How do you determine whether a cell holds a value or a formula? What’s the difference between absolute and relative cell references? Name one instance in which you would not want formulas to calculate automatically.

11. Discussion Questions (cont.) What error-checking rules are available in Excel 2007? What is the advantage of using the Function Wizard over typing functions? Which functions are available for cells containing text? Beyond column names, why would you want to use a named range?