Excel's Formula - sisman

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116 Part II: Using Functions in Your <strong>Formula</strong>s Text functions The text functions enable you to manipulate text strings in formulas. For example, you can use the MID function to extract any number of characters beginning at any character position. Other functions enable you to change the case of text (convert to uppercase, for example). Logical functions This category consists of only seven functions that enable you to test a condition (for logical TRUE or FALSE). You will find the IF function very useful because it gives your formulas simple decision-making capabilities. Information functions The functions in this category help you determine the type of data stored within a cell. For example, the ISTEXT function returns TRUE if a cell reference contains text. Or you can use the ISBLANK function to determine whether a cell is empty. The CELL function returns lots of potentially useful information about a particular cell. User-defined functions Functions that appear in this category are custom worksheet functions created by using VBA. These functions can operate just like Excel’s built-in functions. One difference, however, is that custom functions do not always display a description of each argument in the Paste Function dialog box. It’s up to the programmer to provide these descriptions. Also, user-defined functions do not convert to uppercase when you enter them. Engineering functions The functions in this category can prove useful for engineering applications. They enable you to work with complex numbers and to perform conversions between various numbering and measurement systems. Cube functions The functions in this category allow you to manipulate data that is part of an OLAP data cube. Compatibility functions The Compatibility category is new to Excel 2010. Functions in this category are statistical functions that have been replaced with more accurate functions. However, they are still available for situations in which you need to share your workbook with those who don’t have Excel 2010.
Chapter 4: Introducing Worksheet Functions 117 Other function categories In addition to the function categories described previously, Excel includes four other categories that may not appear in the Paste Function dialog box: Commands, Customizing, Macro Control, and DDE/External. These categories appear to be holdovers from older versions of Excel. If you create a custom function, you can assign it to one of these categories. In addition, you may see other function categories created by macros. See Chapter 23 for information about assigning your custom functions to a function category. Volatile functions Some Excel functions belong to a special class of functions called volatile. Excel recalculates a volatile function whenever it recalculates the workbook — even if the formula that contains the function is not involved in the recalculation. The RAND function represents an example of a volatile function because it generates a new random number every time Excel calculates the worksheet. Other volatile functions include ● CELL ● INDIRECT ● INFO ● NOW ● OFFSET ● TODAY As a side effect of using these volatile functions, Excel always prompts you to save the workbook when you close it — even if you made no changes to it. For example, if you open a workbook that contains any of these volatile functions, scroll around a bit (but don’t change anything), and then close the file. Excel asks whether you want to save the workbook. You can circumvent this behavior by using the Manual Recalculation mode, with the Recalculate Before Save option turned off. Change the recalculation mode in the Calculate section of the <strong>Formula</strong>s tab in the Excel Options dialog box (choose File➜Options).
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Excel ® Microsoft 2010 ® Microsof
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Excel® 2010 Formulas Published by
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Publisher’s Acknowledgments We’
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vi Part VII: Appendixes Appendix A:
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viii Keyboard shortcuts . . . . . .
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x Potential Problems with Names . .
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xii Date-Related Functions . . . .
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xiv Working with Tables . . . . . .
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xvi Chapter 13: Financial Schedules
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xviii Creating Links to Cells . . .
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xx Excel’s Auditing Tools . . . .
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xxii Does the text match a pattern?
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1 INTRODUCTION Welcome to Excel 201
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VBA code listings Introduction 3 Do
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Introduction 5 This chapter is abso
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Introduction 7 You can also use thi
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Basic Information Chapter 1 Excel i
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Labor Day Chapter 6: Working with D
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Figure 6-10: This worksheet convert
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Figure 6-11: This worksheet uses ti
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Counting and Summing Techniques In
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Getting a quick count or sum Chapte
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Yet another way to perform this cou
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Figure 7-8: Creating a frequency di
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Figure 7-14 shows this formula at w
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The following array formula does th
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Using Lookup Functions In This Chap
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Chapter 8: Using Lookup Functions 2
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Figure 9-7: A table, after performi
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About the SUBTOTAL function Chapter
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Figure 9-13: This table shows sales
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You can specify more complex filter
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Figure 9-17: The Advanced Filter di
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10 Miscellaneous Calculations In Th
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Need to convert other units? Solvin
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Table 10-1: Excel Rounding Function
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Round it up to the nearest penny.
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Financial Formulas Chapter 11 Borro
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Introducing Arrays In This Chapter
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Chapter 14: Introducing Arrays 369
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Figure 14-4: Creating a named array
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To add the three smallest values, y
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TRUE and FALSE in array formulas Ch
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Performing Magic with Array Formula
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This version of the formula relies
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4. Select B4:H9 and enter this arra
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PART V Miscellaneous Formula Techni
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Introducing VBA In This Chapter ●
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Figure 22-2: The Macro Settings sec
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Introducing the Visual Basic Editor
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Immediate window Chapter 22: Introd
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Function Procedure Basics In This C
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Figure 23-1: A simple VBA function
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3. Type the name of your function i
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VBA Programming Concepts In This Ch
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x = 1 InterestRate = 0.0625 LoanPay
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Table 24-2: VBA Logical Operators O
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The Count property Chapter 24: VBA
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VBA Custom Function Examples In Thi
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Understanding object parents Chapte
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A Multifunctional Function Chapter
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Worksheet function data types Gener
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For i = 2 To TextLen If Mid(text, i
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Function WORDCOUNT(rng As Range) As
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Multisheet Functions Chapter 25: VB
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Function RANGERANDOMIZE(rng) Dim V(
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Appendixes Appendix A Excel Functio
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762 Chapter 5 Part VII: Appendixes
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768 Part VII: Appendixes Turn off
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770 Index array formulas (continued
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772 Index CONVERT function, 275-277
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774 Index DISC function, 723 discou
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776 Index For-Next loops, 652-654 F
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778 Index LOGNORMDIST function, 718
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780 Index number formatting (contin
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782 Index R1C1 notation, 53-54 RECE
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784 Index tables (continued) rows,
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786 Index VBA (continued) data type
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788 Index
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5. Limited Warranty. (a) WPI warran
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