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Introducing Formulas and Functions 11 Following are some examples of formulas that use various operators. Formula =”Part-”&”23A” =A1&A2 What It Does Joins (concatenates) the two text strings to produce Part-23A. Concatenates the contents of cell A1 with cell A2. Concatenation works with values as well as text. If cell A1 contains 123 and cell A2 contains 456, this formula would return the value 123456. =6^3 Raises 6 to the third power (216). =216^(1/3) Returns the cube root of 216 (6). =A1
Part II Working with Formulas and Functions You can use parentheses to override the Excel’s built-in order of precedence. Expressions within parentheses are always evaluated first. The following formula uses parentheses to control the order in which the calculations occur. In this case, cell B3 is subtracted from cell B2 and the result is multiplied by cell B4: =(B2-B3)*B4 If you enter the formula without the parentheses, Excel computes a different answer. Because multiplication has a higher precedence, cell B3 is multiplied by cell B4. Then this result is subtracted from cell B2, which isn’t what was intended. The formula without parentheses looks like this: =B2-B3*B4 It’s a good idea to use parentheses even when they aren’t strictly necessary. Doing so helps to clarify what the formula is intended to do. For example, the following formula makes it perfectly clear that B3 should be multiplied by B4, and the result subtracted from cell B2. Without the parentheses, you would need to remember Excel’s order of precedence. =B2-(B3*B4) You can also nest parentheses within formulas — that is, put them inside other parentheses. If you do so, Excel evaluates the most deeply nested expressions first — and then works its way out. Here’s an example of a formula that uses nested parentheses: =((B2*C2)+(B3*C3)+(B4*C4))*B6 This formula has four sets of parentheses — three sets are nested inside the fourth set. Excel evaluates each nested set of parentheses and then sums the three results. This result is then multiplied by the value in B6. Although the preceding formula uses four sets of parentheses, only the outer set is really necessary. If you understand operator precedence, it should be clear that you can rewrite this formula as: =(B2*C2+B3*C3+B4*C4)*B6 Again, using the extra parentheses makes the calculation much clearer. Every left parenthesis, of course, must have a matching right parenthesis. If you have many levels of nested parentheses, keeping them straight can sometimes be difficult. If the parentheses don’t match, Excel displays a message explaining the problem — and won’t let you enter the formula. In some cases, if your formula contains mismatched parentheses, Excel may propose a correction to your formula. Figure 11.1 shows an example of the Formula AutoCorrect feature. You may be tempted simply to accept the proposed correction, but be careful — in many cases, the proposed formula, although syntactically correct, isn’t the formula you intended, and it will produce an incorrect result. 178
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CD-ROM Included! • All examples a
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Excel® 2007 Bible John Walkenbach
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About the Author John Walkenbach is
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Acknowledgments ...................
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Acknowledgments . . . . . . . . . .
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Contents Chapter 4: Essential Works
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Contents Displaying text at an angl
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Contents Entering Formulas into You
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Contents Memorial Day .............
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Contents Summarizing loan options b
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Contents Line charts...............
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Contents Using WordArt ............
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Contents Opening an HTML File .....
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Contents Retrieving Data with Query
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Contents The Covariance tool ......
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Contents Chapter 42: Using UserForm
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Writing Excel 2007 Bible was one of
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Acknowledgments I would especially
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Acknowledgments I may be faceless,
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Thanks for purchasing the Excel 200
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Introduction n n n n n Press: Press
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Getting Started with Excel The chap
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Part I Getting Started with Excel U
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What’s New in Excel 2007? If you
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What’s New in Excel 2007? 2 CROSS
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What’s New in Excel 2007? 2 Conso
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What’s New in Excel 2007? 2 Colla
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Entering and Editing Worksheet Data
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Working with Cells and Ranges Most
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Working with Cells and Ranges 5 Usi
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Worksheet Formatting Formatting you
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Worksheet Formatting 7 n Percent St
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Worksheet Formatting 7 Updating Old
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Worksheet Formatting 7 n Ctrl+U: Un
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Worksheet Formatting 7 The Shrink T
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Worksheet Formatting 7 Using Colors
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Worksheet Formatting 7 FIGURE 7.9 U
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Worksheet Formatting 7 n Pattern n
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Worksheet Formatting 7 To create a
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Creating Formulas for Financial App
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Introducing Array Formulas One of E
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Performing Magic with Array Formula
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Creating Charts and Graphics The fo
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Part III Creating Charts and Graphi
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Using Advanced Excel Features Anumb
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Using Data Validation This chapter
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Using Data Validation 25 7. (Option
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Using Data Validation 25 FIGURE 25.
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Using Data Validation 25 In this ca
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Linking and Consolidating Worksheet
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Making Your Worksheets Error-Free I
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Using Microsoft Query with External
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Part V Analyzing Data with Excel Pi
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Programming Excel with VBA If you
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Part VI Programming Excel with VBA
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Creating UserForms You can’t use
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Creating UserForms 41 FIGURE 41.2 T
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Creating UserForms 41 The following
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Creating UserForms 41 FIGURE 41.6 A
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Creating UserForms 41 FIGURE 41.7 T
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Creating UserForms 41 8. Add a Comm
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Creating UserForms 41 ON the CD-ROM
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Creating UserForms 41 FIGURE 41.11
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Creating UserForms 41 5. In the Mac
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Using UserForm Controls in a Worksh
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Working with Excel Events In the pr
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Working with Excel Events 43 Your c
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Working with Excel Events 43 MsgBox
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Working with Excel Events 43 TABLE
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Creating Custom Excel Add-Ins For d
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Creating Custom Excel Add-Ins 45 Ad
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Creating Custom Excel Add-Ins 45 5.
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Creating Custom Excel Add-Ins 45 Mo
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Worksheet Function Reference This a
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Worksheet Function Reference A TABL
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Part VII Appendixes The interface w
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Part VII Appendixes n n text formul
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Part VII Appendixes n list formulas
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Additional Excel Resources If I’v
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Additional Excel Resources C Micros
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Additional Excel Resources C Tips f
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Excel Shortcut Keys Many users have
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Excel Shortcut Keys D Key(s) Ctrl+S
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Excel Shortcut Keys D TABLE D.6 Key
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Excel Shortcut Keys D Key(s) Ctrl+F
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A Index adding (continued) commands
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B Index BeforeRightClick event, 751
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C Index changing case of text, 214-
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C Index comments adding, 90-91 alte
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C Index currency Currency data type
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D Index deleting (continued) column
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E Index events, workbooks (continue
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F Index formatting (continued) copy
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F Index formulas (continued) Manual
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F Index functions (continued) IMARG
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G Index GESTEP function, 788 GETPIV
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H Index Highlight Changes dialog bo
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L Index LOGINV function, 795 LOGNOR
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N Index named ranges (continued) fi
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P Index password-protection VBA cod
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R Index ranges, counting (continued
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S Index screen display, 4-6 screen
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S Index styles (continued) named st
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T Index TIME function, 241, 787 tim
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V Index VBA (Visual Basic for Appli
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W Index windows (continued) protect
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W Index worksheets, printing (conti
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(b) WPI AND THE AUTHOR(S) OF THE BO
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