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# Excel Formulas Functions

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• 1. For useful Documents like this and Lots of more Educational and Technological Stuff... Visit... www.thecodexpert.com EXCEL 2003 - FORMULAS AND FUNCTIONS HANDOUT Topics to be covered: MAX, MIN, AVG, IF, NESTED IF, CONDITIONAL SUM. Terminology: Formula: A sequence of values, cell references, names, functions, or operators in a cell that produces a new value from existing values. A formula always begins with an equal sign (=). Function: a predefined or built-in formula. Functions can be used to perform simple or complex calculations. Formula Bar: A bar near the top of the Microsoft Excel window that you use to enter or edit values or formulas in cells or charts. It displays the constant value or formula used in the active cell. To display or hide the formula bar, click Formula Bar on the View menu. Formula Palette: A tool that helps you create or edit a formula and also provides information about functions and their arguments. The palette appears below the formula bar when you click the Edit Formula button on the formula bar or the Insert Function button on the Standard toolbar. Insert Function button launches the Function Palette. Argument: The values a function uses to perform operations or calculations. The type of argument a function uses is specific to the function. Common arguments used within functions include numeric values, text values, cell references, ranges of cells, names, labels, and nested functions. Cell References: A function can refer to a cell. The function will re-calculate any time the value of the cell changes. A function can also refer to a range of cells. To refer to a range of cells, enter the reference for the cell in the upper-left corner of the range, a colon (:), and then the reference to the cell in the lower-right corner of the range. The following are examples of references. Ranges: The Range Cells included in the Range A15 Cell in column A , row 15 C1:C25 All cells in column C, rows 1 through 25 B2:D30 All cell in columns B, C and D, rows 2 through 30 in each column The Syntax of a Function: A function begins with an = (equal sign) and the name of the function followed by an opening parenthesis. The arguments for the function are separated by commas and end with a closing parenthesis. Nesting: Refers to using functions as arguments for other functions. When a function is used as an argument (or nested) it must return the same type of value that the argument uses or an #VALUE! error will occur. A formula can contain up to seven levels of nested functions. Example below: AVERAGE and SUM are nested functions of IF =IF(AVERAGE(A2:A5)>50,SUM(B2:B5),0) For useful Documents like this and Lots of more Educational and Technological Stuff... Visit... www.thecodexpert.com
• 2. For useful Documents like this and Lots of more Educational and Technological Stuff... Visit... www.thecodexpert.com Read as “IF the average of A2 through A5 is greater than 50, THEN enter the sum or B2 through B5, ELSE enter a 0” Hands on Exercises: Start Excel. 1. Open the file named Excel-FormulasFunctions.xls. (The five sheets in this workbook will be used in class. Notice each sheet tab identifies the topic covered.) 2. Make sure you are looking at the first sheet, named AvgMaxMin We will enter formulas to calculate the AVERAGE, MAXIMUM (highest) and MINIMUM (lowest) book sales in cells N5, O5, P5. Note that the formulas have already been entered in N4, O4, and P4 for you to refer to. Reminder: Always position the cursor in the cell where you want the result of your function or formula to go before starting your formula or function. 3. Click Cell N5. 4. Click the Insert Function button 5. Select AVERAGE from the Function Name box on the right side. (If you don’t see it, click All in the Function Category box to get the entire list and choose from there.) 6. Once you have found it, click OK. The Function Argument Box will open. For useful Documents like this and Lots of more Educational and Technological Stuff... Visit... www.thecodexpert.com
• 3. For useful Documents like this and Lots of more Educational and Technological Stuff... Visit... www.thecodexpert.com . 7. Indicate the range of cells B5 to M5. (Note: Excel may try to help you by suggesting a range. If the range suggested by Excel is correct then this step is not necessary, however it is a good idea to double check. ) If the box is taking up too much space, you may click the Collapse Dialog Box button which collapses the dialog allowing you to check the range. Click the Collapse Dialog button again to expand the window. 8. Notice the formula result is displayed near the bottom of the formula palette. 9. Click OK. 10. The function can now be copied down to the rest of the cells in the column. Use the fill handle to do so. 11. Refer to the preceding steps to enter the function for MAX in cell O5 and MIN in cell P5. Hint: Check the contents of cells O4 and P4 before you begin. Be sure to ask if you have questions. SimpleIF 1. Switch to the second sheet labeled SimpleIF. In this sheet you will use a simple IF function to evaluate a number in column B (the students’ numerical grade) and then assign an S or NC (indicating Satisfactory or No Credit for the course) in column C. NOTE: A satisfactory grade is one which is > 65.5 For useful Documents like this and Lots of more Educational and Technological Stuff... Visit... www.thecodexpert.com