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ENGR 179 EXCEL for Scientists and Engineers Lecture 1: Fall 2004 Instructor: Sherman Wiggin

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What is a spreadsheet? It is a computerized grid designed to do mathematical and statistical calculations and sort lists of information. What are some basic spreadsheet capabilities? In addition to calculations, they are handy for making quick charts and graphs, along with performing database operations.

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Cells, Worksheets, Workbooks Worksheets are made up of cells. These cells have addresses by Column and Row. A cell in column B and row 5 is called B5. Worksheets can have a maximum of 256 columns and 65,536 rows. Workbooks are made Up of a maximum of 256 worksheets

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Cell References Cell in column C and row 7 C7 Range of cells C1 through C10 C1:C10 Range of cells B6 through K6 B6:K6 All cells in row 10 10:10 All cells in rows 1 through 10 1:10 All cells in column F F:F All cells in columns A to E A:E Absolute cell reference C3 $C$3 Paste Link Function

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Numbers, Text, Formulas Formula for D7 is shown in Formula Bar

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Formula Entry =1+1 (addition) =2-1 (subtraction) =4*3 (multiplication) =12/3 (division) =3^2 (exponent) =(B7/B9)*10 (cell formula structure) = EXCEL function (cell values)

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Useful Worksheet Functions =SUM(B9:B20) (adds up cells in range) =AVERAGE(A1:A20) =MEDIAN(1,4,5,6,A9) =ROUNDDOWN(29.123,1) =ROUNDUP(A8,0) =INT(C29) =SIN(45*PI()/180) =COS(30*PI()/180) =CONVERT(number,from_unit,to_unit) =exp(1) ( )

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Worksheet Set Up Use separate worksheets for data files and calculations Use either embedded charts or separate chart sheets Use descriptive tabs for worksheets Use comments on cells Use cell inputs at the top of the worksheet

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Importing Data Files Delimited (Character separation: tab, space, comma…) Data type (text, date, number…) Cut and paste operations Data Sort Function

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Graphing Results XY scatter charts Line charts Column and bar charts Pie charts Trend line Curve fitting (polynomial fit) Formatting Charts

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Next… Next meeting we will look at how to use Excel to solve simple integral and derivative problems. Then moving into the basic problem solving applications (Physics, Statics, etc…)

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