ME 142 Engineering Computation I Unit 1.1 Excel Basics
Verification Codes Excel File must be.xlsm If you save as.xlsx you will delete the program that creates verification codes Results Worksheet contains: Verification codes cut and paste or type into I-Learn Troubleshooting data
Results Tab Use the Results Tab to troubleshoot Verification Codes
How Did I Do? Use the How Did I Do button to check an answer prior to submitting If you submit an incorrect answer, new variable values will be generated each time the problem is repeated This button is only available on Practice Problems.
Additional Resources
Key Concepts Entering Data &Formulas Moving/Copying Data & Formulas Relative & Absolute Addressing Named Cells Conditional Formatting Formatting Numbers Row & Column Manipulation
Entering Data & Formulas
What is an Cell in a Spreadsheet?
Entering Data & Formulas: Cell Each rectangle of the grid is called a cell Each cell is identified by its cell address, made up of a column letter and row number
What is the Active Cell?
Entering Data & Formulas: Active Cell The active cell is identified by: A heavy border Row/column headings highlighted Cell address shown in the name box Information is entered through the active cell
How do I enter a Formula in Excel?
Entering Data & Formulas: Formula Formula equation Begin with equal sign (=) Formula shown in formula bar Results of calculation shown in the cell
Entering Data & Formulas: Entering/Editing Data & Formulas Entering data similar to word processor Mouse, arrow keys, enter, tab, May edit in formula bar May use the mouse to select appropriate cells while entering formula
Entering Data & Formulas: Built-in Functions Hundreds of built-in functions available We will cover a number of those useful to engineers over the course of the semester See Formulas ribbon Formulas contain arguments in parenthesis
What types of Data are commonly used in Excel?
Entering Data & Formulas: Text, Numbers, & Formula Numbers numeric value May be integer or real numbers Text character, word, label By default Text is left justified Formula equation Begin with equal sign (=) Formula shown in formula bar Results of calculation shown in the cell
Can a number be entered as text?
Entering Data & Formulas: Text vs. Numbers May use a single quote ( ) to force text
Entering Data & Formulas: Error Messages Understanding excel error messages can be useful in finding spreadsheet errors: #DIV/0 #N/A #NAME? #NUM! #REF! #VALUE! divide by zero result is not available Function name not recognized Not a valid number (too large ) Invalid cell referenced Wrong type of argument
Moving/Copying Data & Formulas
How do you move a formula? How do you copy a formula?
Moving/Copying Data & Formulas Many methods to move/copy data Cut, copy, and paste to clipboard Move by dragging Copy/move single or multiple cells Try [Shift] and [End] keys Fill handles
What happens when a formula is copied? What happens to dependent cells when data is moved?
Relative & Absolute Addressing
What is relative and absolute addressing?
Relative & Absolute Addressing Relative Addressing refers to the automatic incrementing of a cell address during the copying process It is an extremely important feature of spreadsheets Copying down increments row numbers Copying across increments column numbers
Relative & Absolute Addressing Absolute Addresses are constant and do not change or increment when copied A dollar sign $ in front of a row or column number denotes an absolute address
Relative & Absolute Addressing Relative by default: (example D5) Copying down increments row numbers Copying across increments column letters Use $ to change from relative to absolute Example $D$5 May use in combination Example $D5 or D$5 Use [F4] key
Relative & Absolute Addressing
Named Cells
What is a named cell?
Named Cells Individual cells or ranges may be named A cell name acts as an absolute address is not modified when a formula is copied To remove a name use Ribbon commands Formulas/Name Manager
Named Cells Using named cells in your formulas can make them easier to comprehend Enter a cell name in the Name box
What happens when a named cell is moved?
Conditional Formatting
What is Conditional Formatting?
Conditional Formatting With conditional formatting, particular format attributes are applied only if a certain condition is met Makes it easy to spot extreme data values
Conditional Formatting A variety of formatting options available:
Formatting Numbers
How do you format numbers? What common number formats are available?
Formatting Numbers Variety of formats available within Excel, including Custom Formats
What is Engineering notation and how does it differ from Scientific notation?
Formatting Numbers Engineering typically requires specific number of decimal places or significant digits Number and Scientific formats common Engineering notation available as Custom format
Row & Column Manipulation
How do you manipulate (move, copy, insert, hide, delete) entire rows or columns?
Row & Column Manipulation Entire Rows and Columns may be moved, copied, inserted (added), hidden, and deleted Columns/Row width/height may be resized
Application: Amortization Schedule Develop a spreadsheet to calculate an amortization schedule for a home mortgage or car loan
Review Questions
Review Questions: Entering/Editing Data & Formulas The active cell on a spreadsheet is indicated by which of the following? A. A thick, dark border B. A dashed border C. A blinking border D. A blinking background in the cell
Review Questions: Moving & Copying Data/Formulas Suppose cell A4=2 and A5=4. If you select both cells and drag the fill handle down to cell A8, what are the contents of cells A6, A7, and A8 (respectively): A. 5, 6, 7 B. 6, 8, 10 C. 8, 32, 256 D. 8, 16, 32
Review Questions: Relative & Absolute Addressing Which key is the shortcut for toggling between relative and absolute addressing: A. F2 B. F4 C. F6 D. F8
Review Questions: Formatting Numbers If a cell displays ########, what is most like the problem: A. There is an error in the formula B. The column is too short to show all digits C. The row is too short for the text size D. None of the above
Review Questions: Row & Column Manipulation The easiest method to select an entire column in a spreadsheet is: A. Double click any cell in the column B. Type in the label of the column C. Click on the column heading D. None of the above
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