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Published byBrett Stone Modified over 9 years ago
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The Briefest Excel Tutorial You’ll Ever See
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Microsoft Excel, or any spreadsheet for that matter, is an incredibly rich calculation program In this most skimpy of lessons, we will discuss only: ◦Labels ◦Numbers ◦Formulas ◦Graphs
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Excel is like a map: each cell has an address Columns use letters, rows use numbers Addresses therefore are like A3, F89, CC34, etc.
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A label is simple text ◦In this case the word ‘Label’ is in cell A1 ◦Excel cannot do math if any letters are in a cell You can edit a label by clicking in the edit bar
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A number is, well, a number 3.14 is in cell A2 You can edit numbers in the edit bar
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A formula is what make a spreadsheet powerful ◦It’ll blow your TI Eighty-Whatever out of the room! Formulas always start with = You can enter numbers in a formula, but… Sometimes it’s better to point to a cell ◦However, you can mix numbers and cell addresses Some simple math functions are: ◦Addition + ◦Subtraction – ◦Multiplication * ◦Division / ◦Powers ^
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Here the formula adds 1 to the contents of cell A2
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No surprise: 4.14 See the option to edit in the edit bar?
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The truly wonderful part is drag and copy Place the cursor in the lower right-hand corner of the cell you wish to copy Hold down the left mouse button and drag
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Voila! The formula looks in successive cells and adds 1 to each cell’s value This way if you change a cell’s contents you don’t have to adjust the formula
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Now let’s graph ◦Highlight the values you wish to graph ◦Click on the scatter chart icon in the toolbar
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For the XY sub-type choose the one that does not connect the dots Click it and the graph will pop into existence
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Right click on a data point. A dialog box opens Choose “Add Trendline…”
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Choose the type that best fits your data, meaning that the line/curve hits the maximum number of points ◦N.B. Sometimes you will be directed to use a Linear trendline ◦If so, choose Display Equation
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Click on your chart and go to Chart Tools/Layout Add a Chart Title Add both Axis Titles
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This just touches the surface of what Excel can do. I encourage you to explore the program; you can do no harm and it will only enhance your abilities
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Three Exercises Exercise 1 Exercise 2 Exercise 3 (For Teacher TRaC students) Exercise 3 Exercise 3A (for Astronomy Students) Exercise 3A
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