INTRODUCTION TO EXCELDAY 2

Seminar for Top Engineering Prospects

http://fairway.ecn.purdue.edu/~step/class_material

Addressing Review

A1 = Relative Column, Relative Row $A1 = Absolute Column, Relative Row A$1 = Relative Column, Absolute

Row $A$1 = Absolute Column, Absolute

Row

F4 to Toggle Through Options

Velocity Exercise -- IndividualTime: 10 min

Two cars sit at a red light, revving their engines. When the light changes, both cars floor it.

Find the velocities of each car in .5 second increments for t = 0 to 10 seconds if:The red car takes off at v = 12t + t2 m/s.The black car takes off at v = (8 + t)t + t2 m/s.

Which car wins?

Graphing -- Step 1

Select all Data

Graphing – Step 2

Click the Insert tab

Click the Scatter button

Graphing – Step 3

Choose whichever one you like

Graphing Complete!

Adding A Title

Click on the Layout tab (the chart must be selected)

Click the Chart Title button

Adding A Title, Cont.

Click either of the two bottom options

Then just click inside the text box that appears saying “Chart Title” to edit the text.

Adding Axis Labels

Click on the Layout tab (the chart must be selected)

Click the Axis Titles button

Adding Axis Labels, Cont.

Select Primary Horizontal Axis Title

Select Title Below Axis Then just click inside the text box that appears saying “Axis Title” to edit the text.

Adding Axis Labels, Cont.

To add a y-axis title, selectPrimary Vertical Axis Title instead

Select any of these options

Axis Labels And A Title

Then just click inside the text box that appears saying “Axis Title” to edit the text.

Graphing Exercise – TeamTime: 7 min Now create a graph for just the red car

or just the black car.

Solution – General Graphing Technique

Click the Insert tab

Choose whichever one you like

Solution, Cont.

Right click anywhere in the box

Solution, Cont.

Click Select Data

Solution, Cont.

Click Add

Name your series appropriately Then click the box

next to Select Range

Solution, Cont.

When you see this box, select the appropriate cells, and then click this button.

Solution, Cont.

Click the button under Series Y values

When you see this box, select the appropriate cells, and then click this button.

Solution, Cont.

Click OK

Solution!!!

Goal Seek

Used to find a specific result in one cell (that contains a formula) by changing another cell (that contains one of the components of the formula)

Goal Seek – How to Find it

Click the Data tab

Click on What-IfAnalysis And then Goal Seek

Goal Seek

$B$1 Contains a formula such as

=$A$1 * 2 Goal Seek would find which value of $A$1

would set $B$1 to 4, in this case, 2

Goal Seek In the case of multiple valid answers, you

must provide Goal Seek with an initial guess.

Goal Seek Uses

Find Roots of an equation Find a break even point in economic

forecast

Team Exercise You are given $1000 today. What interest

rate (compounded Annually) is needed in order to have $10,000 after 15 years?

F = P(1+I)n

F = Final Amount P = Present Amount I = Interest Rate N = Number of Periods Estimated Time Needed : 10 minutes