# 9 Lists

## 9.5 Using ranges to construct lists

### Exercise: EnumFromTo

see EnumFromTo.hs

## 9.6 Extracting portions of lists

### Exercises: Thy Fearful Symmetry

see FearfulSymmetry.hs

## 9.7 List Comprehensions

### Exercises: Comprehend Thy Lists

1. [4,15,36,64,100]

2. haskell [(1,1),(1,4),(1,9),(1,16),(1,25),(1,36),(1,49) ,(4,1),(4,4),(4,9),(4,16),(4,25),(4,36),(4,49) ,(9,1),(9,4),(9,9),(9,16),(9,25),(9,36),(9,49) ,(16,1),(16,4),(16,9),(16,16),(16,25),(16,36),(16,49) ,(25,1),(25,4),(25,9),(25,16),(25,25),(25,36),(25,49) ,(36,1),(36,4),(36,9),(36,16),(36,25),(36,36),(36,49) ,(49,1),(49,4),(49,9),(49,16),(49,25),(49,36),(49,49) ]

3. [(1,1),(1,4),(1,9),(1,16),(1,25)]

### Exercises: Square Cube

see SquareCube.hs

1. bottom
2. works
3. bottom
4. works
5. bottom
6. works
7. bottom
8. works
9. works
10. bottom

1. WHNF & NF
2. WHNF
3. neither
4. neither
5. neither
6. neither
7. WHNF

## 9.9 Transforming lists

### Exercises: More Bottoms

1. bottom
2. yes
3. bottom
4. Is this character a vowel? itIsMystery :: Char -> Bool
1. the first 10 square numbers
2. [1, 10, 20]
3. [15, 15, 15]
5. see FoldBool.hs

## 9.10 Filtering lists of values

### Exercises: Filtering

see Filtering.hs

### Zipping exercises

see ZippingExercises.hs

## 9.12 Chapter Exercises

### Data.Char

see CharExercises.hs

### Ciphers

see Cipher.hs

### Writing your own standard functions

see StdFunc.hs