1. Spreadsheet Review

2. Functions

3. Types of Functions Built-in functions: User-defined functions
Financial
Date & time
Math & statistical
Database
Lookup
Logical
Information: IsBlank, IsNumber, IsText
Text
Etc.
User-defined functions

4. Numeric functions
Int(x): returns the greatest integer less than or equal to X.
Int(2.3) = 2
Int(5.6) = 5
Mod(Number, Divisor): returns the remainder after a number is divided by a divisor).
Mod(6,4)=2
Mod(65,10)=5

5. Examples of Using Int and Mod Function
Remainder function: MOD(Dividend, Divisor)

7. Practice:Return the Smallest Number of Coins
Examples:
26 cents: 1 Q, 1 P
57 cents: 2 Q, 1 N, 2 P
63 cents: 2 Q, 1 D, 3 P

8. Statistical Functions
Sum, Average, Max, Min, Count
Ignore text and logical values.
SumA, AverageA, MaxA, MinA, CountA
Does not ignore text and logical values:
Text -> 0
True -> 1
False -> 0
Can have many arguments:
=SUM(A1:A3, 12, B3:B7)

9. Compute each student’s:
Best score, Lowest score, exam average
Average of the best 3 scores
Average of the best 2 scores

10. Practice:Average Excluding the Highest and the lowest Scores

11. Text Functions Lower(text): Lower(“David”) -> “david”
Upper(text): Upper(“David”) -> “DAVID”
Right(text, #ofCHars)
Right(“David”, 4) -> ”avid”
Left(text, #ofChars)
Left(“David”, 2) -> “Da”
Len(text) -> the number of characters in a text.
Len(“David”) -> 5

12. The first letter in uppercase and all other letters in lowercase

13. The first letter in each word in uppercase and other in lower case
Full name format: First Name + Space + Last Name

14. Proper
B1: DAVID CHAO
=Proper(B1)

15. Cell Reference

16. Demo

17. Copy Formula
Drag the source cell
Copy/Paste
Edit/Fill

18. Cell Reference
Relative cell reference: After copy, the formula will reference cells with the same relative position as the original formula.
Example:
Value in cell E6: C6*D6
Absolute Cell Reference: After copy, the formula still references the same cell as the original formula.
Tax in cell F6: E6*$C$3

20. Mixed Cell Reference $ColumnRow: $A1 Column$Row: A$1 Examples: =$A1

21. Cases Where Mixed Cell Reference are Optional

22. Case that Must Use Mixed Cell Reference

23. Decision: Action based on condition
IF Function
Decision: Action based on condition

24. Examples Simple condition: More than one condition:
If total sales exceeds $300 then applies 5% discount; otherwise, no discount.
More than one condition:
Taxable Income < = no tax
3000 < taxable income <= % tax
Taxable income > % tax

25. Comparison Less than: < Less than or equal: <=
Greater than: >
Greater than or equal: >=
Equal: =
Not equal: <>
At least: >=
At most: <=
No more than: <=
No less than: >=
A comparison returns True/False.

26. IF Function =IF(condition, ValueIfTrue,ValueIfFalse) Example:
Tuition: If total units <= 12, then tuition = 1200
Otherwise, tuition = per additional unit
In Cell C2: IF(B2<=12, 1200, *(b2-12))

27. Example: Compute weekly wage
Example: Compute weekly wage. Overtime hours are paid 50% more than the regular pay.
In Cell D2: If(C2<=40, B2*C2, B2* *B2*(C2-40))

28. Example: Tax rate is based on married status:
Single: 15%
Married: 10%
In D5: If(B5=“S”,$C$1*C5, $C$2*C5)

29. Nested IF Example: Rules to determine bonus:
JobCode = 1, Bonus=500
JobCode = 2, Bonus = 700
JobCode = 3, Bonus = 1000
In C2: If(B2=1, 500, If(B2=2, 700, 1000))

30. Example
Electric Company charges customers based on KiloWatt-Hour used. The rules are:
First 100 KH, 20 cents per KH
Each of the next 200 KH
(up to 300 KH), 15 cents per KH
All KH over 300, 10 cents per KH
In C2: If(B2<=100, .2*B2,If(B2<=300,.2* *(B2-100),.2* *200+.1*(B2-300))