1. Lecture # 7 Spreadsheet Basics

2. I have two coins in my hand that total 55¢. One is not a nickel. What are the two coins?

3. Today Questions: From notes/reading/life? Review Quiz # 1 1.Introduce: How do solve problems? 2.Explain: Formulas, Expressions, Numerical Limits, Formatting, Moving things, Functions Dynamic Recomputation, Records 3.Demo: Spreadsheet Magic – follow along on laptop 4.Practice: You solve a problem with a spreadsheet 5.Evaluate: Share and evaluate your solution 6.Re-practice:Create a Budget with a spreadsheet Review Spreadsheet Functions Understand Dynamic Recomputation

4. Today Questions: From notes/reading/life? Review Quiz # 1 1.Introduce: How do solve problems? 2.Explain: Formulas, Expressions, Numerical Limits, Formatting, Moving things, Functions Dynamic Recomputation, Records 3.Demo: Spreadsheet Magic – follow along on laptop 4.Practice: You solve a problem with a spreadsheet 5.Evaluate: Share and evaluate your solution 6.Re-practice:Create a Budget with a spreadsheet Review Spreadsheet Functions Understand Dynamic Recomputation

5. A Problem: Wages = $6.25 per hour Hours worked = 25 Compute the total pay:

6. What are some ways to solve this problem?

7. Paper and Pencil

8. Use a calculator

9. Write a Program Wages = 6.25; HoursWorked = 25; Total Pay = 6.25 * 25 Wages$6.25 HoursWorked TotalPay

10. Write a Program Wages = 6.25; HoursWorked = 25; Total Pay = 6.25 * 25 Wages$6.25 HoursWorked25 TotalPay

11. Write a Program Wages = 6.25; HoursWorked = 25; Total Pay = 6.25 * 25 Wages$6.25 HoursWorked25 TotalPay$156.25

12. Use a Spreadsheet

13. Spreadsheets The program that created the modern personal computer.

14. Today Questions: From notes/reading/life? Review Quiz # 1 1.Introduce: How do solve problems? 2.Explain: Formulas, Expressions, Numerical Limits, Formatting, Moving things, Functions Dynamic Recomputation, Records 3.Demo: Spreadsheet Magic – follow along on laptop 4.Practice: You solve a problem with a spreadsheet 5.Evaluate: Share and evaluate your solution 6.Re-practice:Create a Budget with a spreadsheet Review Spreadsheet Functions Understand Dynamic Recomputation

15. Type any text Type any number

16. Formulas are Expressions

17. A spreadsheet is an array B1 is the same as Book1[0,1] 1 0 1 2 3 4 0 B2 is the same as Book1[1,1] Row-Col is the same as Book1[Row-1, Col- ’ A ’ ]

18. A cell expression is an assignment 1 0 1 2 3 4 0 B4 = B1*B2 is the same as.... Book1[3,1] = Book1[0,1] * Book1[1, 1];

19. Demo time

20. Compute Social Security

21. Compute Payroll costs

22. Dynamic recomputation the power of a spreadsheet Change this Automatically recompute these

23. Why not just use a calculator? Change this Automatically recompute these

24. Fahrenheit to Celsius

25. Today Questions: From notes/reading/life? Review Quiz # 1 1.Introduce: How do solve problems? 2.Explain: Formulas, Expressions, Numerical Limits, Formatting, Moving things, Functions Dynamic Recomputation, Records 3.Demo: Spreadsheet Magic – follow along on laptop 4.Practice: You solve a problem with a spreadsheet 5.Evaluate: Share and evaluate your solution 6.Re-practice:Create a Budget with a spreadsheet Review Spreadsheet Functions Understand Dynamic Recomputation

26. Personal Exercise Create a spreadsheet that looks like the following slide Input data and calculate the cost per square foot Play with the costs and square footage to maximize your dollar per square foot given a budget of $75,000 Now make the kitchen 400 square feet and adjust the rest You have 10 minutes

27. Remodeling budget

28. How many $ for the microfilm library?

29. Why the decimal point? Integer Overflow -> Floating Point

30. Switch to Floating Point

31. Overflow

32. Underflow

33. What Else is Under the Hood? Formatting Moving things around Functions

34. Formatting Bold, Italic, Underline

35. If each cell has a value, where is the format stored? AB 1 2 3

36. Formatting Automatic, Left, Center, Right

37. Where do we store alignment? AB 1 2 3 0 = Automatic 1 = Left 2 = Center 3 = Right

38. Why not use Booleans like bold and italic? AB 1 2 3 0 = Automatic 1 = Left 2 = Center 3 = Right

39. Font Name and Size

40. Fill Color and Text Color

41. Cell Contents And there is a lot more

42. This kind of data structure is called a “record” And there is a lot more

43. Records (a collection of named things) Student

44. Records (a collection of named things) Student Student.GPA = 3.6; Student.Address = “ Reams 3 ” ;

45. Records (a collection of named things) Student Student.GPA = 3.6; Student.Address = “ Reams 3 ” ;

46. Records (a collection of named things) Student Student.GPA = 3.6; Student.Address = “ Reams 3 ” ;

47. An Array of Students Students

48. An Array of Students Students Students[1].Name = “ Ann ” ;

49. Number Formatting Demo Currency Comma formatted numbers Percents Decimals Format menu

50. Dates Demo Formatting Arithmetic on dates

51. What Else is Under the Hood? Formatting Moving things around Functions

52. Formatting  Moving things around Functions What Else is Under the Hood?

53. Moving Things Cut, Copy, Paste Adding Rows and Columns

54. Relative Cell References Copy from here Paste to here

55. Relative Cell References Copy from here Paste to here

56. Relative Cell References Copy from here Paste to here Add Rows moved to each row index Add Columns moved to each column index

57. Inserting a column

59. Inserting a row

60. Formatting Moving things around  Functions What Else is Under the Hood?

61. Functions Adding more things than arithmetic to expressions A = Min( 10, 20 ); A==10 B = Min(A+4,16); B == 14 C = Max(A+B, Min(200,50) ) C == Max(24,50) == 50

62. Functions - Demo Min Max Sqrt Sum Average Today

63. Questions: From notes/reading/life? Review Quiz # 1 1.Introduce: How do solve problems? 2.Explain: Formulas, Expressions, Numerical Limits, Formatting, Moving things, Functions Dynamic Recomputation, Records 3.Demo: Spreadsheet Magic – follow along on laptop 4.Practice: You solve a problem with a spreadsheet 5.Evaluate: Share and evaluate your solution 6.Re-practice:Create a Budget with a spreadsheet Review Spreadsheet Functions Understand Dynamic Recomputation