Note: Almost all the exercises have many possible correct answers; what’s listed here are merely sample correct answers.
1Starting Out: Elementary Arithmetic
1.1
![](Files/answers-to-exercises-1.1-out.png.en)
1.2
![](Files/answers-to-exercises-1.2-out.png.en)
1.3
![](Files/answers-to-exercises-1.3-out.png.en)
1.4
![](Files/answers-to-exercises-1.4-out.png.en)
1.5
![](Files/answers-to-exercises-1.5-out.png.en)
1.6
![](Files/answers-to-exercises-1.6-out.png.en)
1.7
![](Files/answers-to-exercises-1.7-out.png.en)
1.8
![](Files/answers-to-exercises-1.8-out.png.en)
1.9
![](Files/answers-to-exercises-1.9-out.png.en)
+1.1
![](Files/answers-to-exercises-x1.1-out.png.en)
+1.2
![](Files/answers-to-exercises-x1.2-out.png.en)
+1.3
![](Files/answers-to-exercises-x1.3-out.png.en)
+1.4
![](Files/answers-to-exercises-x1.4-out.png.en)
+1.5
![](Files/answers-to-exercises-x1.5-out.png.en)
+1.6
![](Files/answers-to-exercises-x1.6-out.png.en)
+1.7
![](Files/answers-to-exercises-x1.7-out.png.en)
+1.8
![](Files/answers-to-exercises-x1.8-out.png.en)
2Introducing Functions
2.1
![](Files/answers-to-exercises-2.1-out.png.en)
2.2
![](Files/answers-to-exercises-2.2-out.png.en)
2.3
![](Files/answers-to-exercises-2.3-out.png.en)
2.4
![](Files/answers-to-exercises-2.4-out.png.en)
2.5
![](Files/answers-to-exercises-2.5-out.png.en)
+2.1
![](Files/answers-to-exercises-x2.1-out.png.en)
+2.2
![](Files/answers-to-exercises-x2.2-out.png.en)
+2.3
![](Files/answers-to-exercises-x2.3-out.png.en)
+2.4
![](Files/answers-to-exercises-x2.4-out.png.en)
+2.5
![](Files/answers-to-exercises-x2.5-out.png.en)
+2.6
![](Files/answers-to-exercises-x2.6-out.png.en)
+2.7
![](Files/answers-to-exercises-x2.7-out.png.en)
+2.8
![](Files/answers-to-exercises-x2.8-out.png.en)
3First Look at Lists
3.1
![](Files/answers-to-exercises-3.1-out.png.en)
3.2
![](Files/answers-to-exercises-3.2-out.png.en)
3.3
![](Files/answers-to-exercises-3.3-out.png.en)
3.4
![](Files/answers-to-exercises-3.4-out.png.en)
3.5
![](Files/answers-to-exercises-3.5-out.png.en)
3.6
![](Files/answers-to-exercises-3.6-out.png.en)
3.7
![](Files/answers-to-exercises-3.7-out.png.en)
3.8
![](Files/answers-to-exercises-3.8-out.png.en)
3.9
![](Files/answers-to-exercises-3.9-out.png.en)
3.10
![](Files/answers-to-exercises-3.10-out.png.en)
3.11
![](Files/answers-to-exercises-3.11-out.png.en)
+3.1
![](Files/answers-to-exercises-x3.1-out.png.en)
+3.2
![](Files/answers-to-exercises-x3.2-out.png.en)
+3.3
![](Files/answers-to-exercises-x3.3-out.png.en)
+3.4
![](Files/answers-to-exercises-x3.4-out.png.en)
+3.5
![](Files/answers-to-exercises-x3.5-out.png.en)
4Displaying Lists
4.1
![](Files/answers-to-exercises-4.1-out.png.en)
4.2
![](Files/answers-to-exercises-4.2-out.png.en)
4.3
![](Files/answers-to-exercises-4.3-out.png.en)
4.4
![](Files/answers-to-exercises-4.4-out.png.en)
4.5
![](Files/answers-to-exercises-4.5-out.png.en)
4.6
![](Files/answers-to-exercises-4.6-out.png.en)
4.7
![](Files/answers-to-exercises-4.7-out.png.en)
+4.1
![](Files/answers-to-exercises-x4.1-out.png.en)
+4.2
![](Files/answers-to-exercises-x4.2-out.png.en)
+4.3
![](Files/answers-to-exercises-x4.3-out.png.en)
+4.4
![](Files/answers-to-exercises-x4.4-out.png.en)
+4.5
![](Files/answers-to-exercises-x4.5-out.png.en)
+4.6
![](Files/answers-to-exercises-x4.6-out.png.en)
5Operations on Lists
5.1
![](Files/answers-to-exercises-5.1-out.png.en)
5.2
![](Files/answers-to-exercises-5.2-out.png.en)
5.3
![](Files/answers-to-exercises-5.3-out.png.en)
5.4
![](Files/answers-to-exercises-5.4-out.png.en)
5.5
![](Files/answers-to-exercises-5.5-out.png.en)
5.6
![](Files/answers-to-exercises-5.6-out.png.en)
5.7
![](Files/answers-to-exercises-5.7-out.png.en)
5.8
![](Files/answers-to-exercises-5.8-out.png.en)
5.9
![](Files/answers-to-exercises-5.9-out.png.en)
5.10
![](Files/answers-to-exercises-5.10-out.png.en)
5.11
![](Files/answers-to-exercises-5.11-out.png.en)
5.12
![](Files/answers-to-exercises-5.12-out.png.en)
5.13
![](Files/answers-to-exercises-5.13-out.png.en)
5.14
![](Files/answers-to-exercises-5.14-out.png.en)
+5.1
![](Files/answers-to-exercises-x5.1-out.png.en)
+5.2
![](Files/answers-to-exercises-x5.2-out.png.en)
+5.3
![](Files/answers-to-exercises-x5.3-out.png.en)
+5.4
![](Files/answers-to-exercises-x5.4-out.png.en)
+5.5
![](Files/answers-to-exercises-x5.5-out.png.en)
+5.6
![](Files/answers-to-exercises-x5.6-out.png.en)
+5.7
![](Files/answers-to-exercises-x5.7-out.png.en)
6Making Tables
6.1
![](Files/answers-to-exercises-6.1-out.png.en)
6.2
![](Files/answers-to-exercises-6.2-out.png.en)
6.3
![](Files/answers-to-exercises-6.3-out.png.en)
6.4
![](Files/answers-to-exercises-6.4-out.png.en)
6.5
![](Files/answers-to-exercises-6.5-out.png.en)
6.6
![](Files/answers-to-exercises-6.6-out.png.en)
6.7
![](Files/answers-to-exercises-6.7-out.png.en)
6.8
![](Files/answers-to-exercises-6.8-out.png.en)
6.9
![](Files/answers-to-exercises-6.9-out.png.en)
6.10
![](Files/answers-to-exercises-6.10-out.png.en)
+6.1
![](Files/answers-to-exercises-x6.1-out.png.en)
+6.2
![](Files/answers-to-exercises-x6.2-out.png.en)
+6.3
![](Files/answers-to-exercises-x6.3-out.png.en)
+6.4
![](Files/answers-to-exercises-x6.4-out.png.en)
+6.5
![](Files/answers-to-exercises-x6.5-out.png.en)
+6.6
![](Files/answers-to-exercises-x6.6-out.png.en)
+6.7
![](Files/answers-to-exercises-x6.7-out.png.en)
+6.8
![](Files/answers-to-exercises-x6.8-out.png.en)
+6.9
![](Files/answers-to-exercises-x6.9-out.png.en)
+6.10
![](Files/answers-to-exercises-x6.10-out.png.en)
+6.11
![](Files/answers-to-exercises-x6.11-out.png.en)
7Colors and Styles
7.1
![](Files/answers-to-exercises-7.1-out.png.en)
7.2
![](Files/answers-to-exercises-7.2-out.png.en)
7.3
![](Files/answers-to-exercises-7.3-out.png.en)
7.4
![](Files/answers-to-exercises-7.4-out.png.en)
7.5
![](Files/answers-to-exercises-7.5-out.png.en)
7.6
![](Files/answers-to-exercises-7.6-out.png.en)
7.7
![](Files/answers-to-exercises-7.7-out.png.en)
7.8
![](Files/answers-to-exercises-7.8-out.png.en)
7.9
![](Files/answers-to-exercises-7.9-out.png.en)
7.10
![](Files/answers-to-exercises-7.10-out.png.en)
7.11
![](Files/answers-to-exercises-7.11-out.png.en)
7.12
![](Files/answers-to-exercises-7.12-out.png.en)
7.13
![](Files/answers-to-exercises-7.13-out.png.en)
7.14
![](Files/answers-to-exercises-7.14-out.png.en)
+7.1
![](Files/answers-to-exercises-x7.1-out.png.en)
+7.2
![](Files/answers-to-exercises-x7.2-out.png.en)
+7.3
![](Files/answers-to-exercises-x7.3-out.png.en)
+7.4
![](Files/answers-to-exercises-x7.4-out.png.en)
+7.5
![](Files/answers-to-exercises-x7.5-out.png.en)
+7.6
![](Files/answers-to-exercises-x7.6-out.png.en)
+7.7
![](Files/answers-to-exercises-x7.7-out.png.en)
+7.8
![](Files/answers-to-exercises-x7.8-out.png.en)
+7.9
![](Files/answers-to-exercises-x7.9-out.png.en)
8Basic Graphics Objects
8.1
![](Files/answers-to-exercises-8.1-out.png.en)
8.2
![](Files/answers-to-exercises-8.2-out.png.en)
8.3
![](Files/answers-to-exercises-8.3-out.png.en)
8.4
![](Files/answers-to-exercises-8.4-out.png.en)
8.5
![](Files/answers-to-exercises-8.5-out.png.en)
8.6
![](Files/answers-to-exercises-8.6-out.png.en)
8.7
![](Files/answers-to-exercises-8.7-out.png.en)
8.8
![](Files/answers-to-exercises-8.8-out.png.en)
+8.1
![](Files/answers-to-exercises-x8.1-out.png.en)
+8.2
![](Files/answers-to-exercises-x8.2-out.png.en)
+8.3
![](Files/answers-to-exercises-x8.3-out.png.en)
9Interactive Manipulation
9.1
![](Files/answers-to-exercises-9.1-out.png.en)
9.2
![](Files/answers-to-exercises-9.2-out.png.en)
9.3
![](Files/answers-to-exercises-9.3-out.png.en)
9.4
![](Files/answers-to-exercises-9.4-out.png.en)
9.5
![](Files/answers-to-exercises-9.5-out.png.en)
9.6
![](Files/answers-to-exercises-9.6-out.png.en)
9.7
![](Files/answers-to-exercises-9.7-out.png.en)
9.8
![](Files/answers-to-exercises-9.8-out.png.en)
9.9
![](Files/answers-to-exercises-9.9-out.png.en)
9.10
![](Files/answers-to-exercises-9.10-out.png.en)
9.11
![](Files/answers-to-exercises-9.11-out.png.en)
9.12
![](Files/answers-to-exercises-9.12-out.png.en)
9.13
![](Files/answers-to-exercises-9.13-out.png.en)
9.14
![](Files/answers-to-exercises-9.14-out.png.en)
9.15
![](Files/answers-to-exercises-9.15-out.png.en)
+9.1
![](Files/answers-to-exercises-x9.1-out.png.en)
+9.2
![](Files/answers-to-exercises-x9.2-out.png.en)
+9.3
![](Files/answers-to-exercises-x9.3-out.png.en)
10Images
10.1
![](Files/answers-to-exercises-10.1-out.png.en)
10.2
![](Files/answers-to-exercises-10.2-out.png.en)
10.3
![](Files/answers-to-exercises-10.3-out.png.en)
10.4
![](Files/answers-to-exercises-10.4-out.png.en)
10.5
![](Files/answers-to-exercises-10.5-out.png.en)
10.6
![](Files/answers-to-exercises-10.6-out.png.en)
10.7
![](Files/answers-to-exercises-10.7-out.png.en)
10.8
![](Files/answers-to-exercises-10.8-out.png.en)
10.9
![](Files/answers-to-exercises-10.9-out.png.en)
10.10
![](Files/answers-to-exercises-10.10-out.png.en)
10.11
![](Files/answers-to-exercises-10.11-out.png.en)
10.12
![](Files/answers-to-exercises-10.12-out.png.en)
10.13
![](Files/answers-to-exercises-10.13-out.png.en)
10.14
![](Files/answers-to-exercises-10.14-out.png.en)
+10.1
![](Files/answers-to-exercises-x10.1-out.png.en)
+10.2
![](Files/answers-to-exercises-x10.2-out.png.en)
+10.3
![](Files/answers-to-exercises-x10.3-out.png.en)
+10.4
![](Files/answers-to-exercises-x10.4-out.png.en)
11Strings and Text
11.1
![](Files/answers-to-exercises-11.1-out.png.en)
11.2
![](Files/answers-to-exercises-11.2-out.png.en)
11.3
![](Files/answers-to-exercises-11.3-out.png.en)
11.4
![](Files/answers-to-exercises-11.4-out.png.en)
11.5
![](Files/answers-to-exercises-11.5-out.png.en)
11.6
![](Files/answers-to-exercises-11.6-out.png.en)
11.7
![](Files/answers-to-exercises-11.7-out.png.en)
11.8
![](Files/answers-to-exercises-11.8-out.png.en)
11.9
![](Files/answers-to-exercises-11.9-out.png.en)
11.10
![](Files/answers-to-exercises-11.10-out.png.en)
11.11
![](Files/answers-to-exercises-11.11-out.png.en)
11.12
![](Files/answers-to-exercises-11.12-out.png.en)
11.13
![](Files/answers-to-exercises-11.13-out.png.en)
11.14
![](Files/answers-to-exercises-11.14-out.png.en)
11.15
![](Files/answers-to-exercises-11.15-out.png.en)
11.16
![](Files/answers-to-exercises-11.16-out.png.en)
11.17
![](Files/answers-to-exercises-11.17-out.png.en)
11.18
![](Files/answers-to-exercises-11.18-out.png.en)
11.19
![](Files/answers-to-exercises-11.19-out.png.en)
11.20
![](Files/answers-to-exercises-11.20-out.png.en)
11.21
![](Files/answers-to-exercises-11.21-out.png.en)
11.22
![](Files/answers-to-exercises-11.22-out.png.en)
11.23
![](Files/answers-to-exercises-11.23-out.png.en)
11.24
![](Files/answers-to-exercises-11.24-out.png.en)
11.25
![](Files/answers-to-exercises-11.25-out.png.en)
11.26
![](Files/answers-to-exercises-11.26-out.png.en)
11.27
![](Files/answers-to-exercises-11.27-out.png.en)
11.28
![](Files/answers-to-exercises-11.28-out.png.en)
11.29
![](Files/answers-to-exercises-11.29-out.png.en)
11.30
![](Files/answers-to-exercises-11.30-out.png.en)
11.31
![](Files/answers-to-exercises-11.31-out.png.en)
+11.1
![](Files/answers-to-exercises-x11.1-out.png.en)
+11.2
![](Files/answers-to-exercises-x11.2-out.png.en)
+11.3
![](Files/answers-to-exercises-x11.3-out.png.en)
+11.4
![](Files/answers-to-exercises-x11.4-out.png.en)
+11.5
![](Files/answers-to-exercises-x11.5-out.png.en)
+11.6
![](Files/answers-to-exercises-x11.6-out.png.en)
+11.7
![](Files/answers-to-exercises-x11.7-out.png.en)
+11.8
![](Files/answers-to-exercises-x11.8-out.png.en)
+11.9
![](Files/answers-to-exercises-x11.9-out.png.en)
+11.10
![](Files/answers-to-exercises-x11.10-out.png.en)
+11.11
![](Files/answers-to-exercises-x11.11-out.png.en)
+11.12
![](Files/answers-to-exercises-x11.12-out.png.en)
+11.13
![](Files/answers-to-exercises-x11.13-out.png.en)
12Sound
12.1
![](Files/answers-to-exercises-12.1-out.png.en)
12.2
![](Files/answers-to-exercises-12.2-out.png.en)
12.3
![](Files/answers-to-exercises-12.3-out.png.en)
12.4
![](Files/answers-to-exercises-12.4-out.png.en)
12.5
![](Files/answers-to-exercises-12.5-out.png.en)
12.6
![](Files/answers-to-exercises-12.6-out.png.en)
12.7
![](Files/answers-to-exercises-12.7-out.png.en)
12.8
![](Files/answers-to-exercises-12.8-out.png.en)
12.9
![](Files/answers-to-exercises-12.9-out.png.en)
12.10
![](Files/answers-to-exercises-12.10-out.png.en)
+12.1
![](Files/answers-to-exercises-x12.1-out.png.en)
+12.2
![](Files/answers-to-exercises-x12.2-out.png.en)
+12.3
![](Files/answers-to-exercises-x12.3-out.png.en)
+12.4
![](Files/answers-to-exercises-x12.4-out.png.en)
13Arrays, or Lists of Lists
13.1
![](Files/answers-to-exercises-13.1-out.png.en)
13.2
![](Files/answers-to-exercises-13.2-out.png.en)
13.3
![](Files/answers-to-exercises-13.3-out.png.en)
13.4
![](Files/answers-to-exercises-13.4-out.png.en)
13.5
![](Files/answers-to-exercises-13.5-out.png.en)
13.6
![](Files/answers-to-exercises-13.6-out.png.en)
13.7
![](Files/answers-to-exercises-13.7-out.png.en)
13.8
![](Files/answers-to-exercises-13.8-out.png.en)
13.9
![](Files/answers-to-exercises-13.9-out.png.en)
+13.1
![](Files/answers-to-exercises-x13.1-out.png.en)
+13.2
![](Files/answers-to-exercises-x13.2-out.png.en)
14Coordinates and Graphics
14.1
![](Files/answers-to-exercises-14.1-out.png.en)
14.2
![](Files/answers-to-exercises-14.2-out.png.en)
14.3
![](Files/answers-to-exercises-14.3-out.png.en)
14.4
![](Files/answers-to-exercises-14.4-out.png.en)
14.5
![](Files/answers-to-exercises-14.5-out.png.en)
14.6
![](Files/answers-to-exercises-14.6-out.png.en)
14.7
![](Files/answers-to-exercises-14.7-out.png.en)
14.8
![](Files/answers-to-exercises-14.8-out.png.en)
14.9
![](Files/answers-to-exercises-14.9-out.png.en)
14.10
![](Files/answers-to-exercises-14.10-out.png.en)
14.11
![](Files/answers-to-exercises-14.11-out.png.en)
+14.1
![](Files/answers-to-exercises-x14.1-out.png.en)
+14.2
![](Files/answers-to-exercises-x14.2-out.png.en)
+14.3
![](Files/answers-to-exercises-x14.3-out.png.en)
+14.4
![](Files/answers-to-exercises-x14.4-out.png.en)
+14.5
![](Files/answers-to-exercises-x14.5-out.png.en)
+14.6
![](Files/answers-to-exercises-x14.6-out.png.en)
16Real‐World Data
16.1
![](Files/answers-to-exercises-16.1-out.png.en)
16.2
![](Files/answers-to-exercises-16.2-out.png.en)
16.3
![](Files/answers-to-exercises-16.3-out.png.en)
16.4
![](Files/answers-to-exercises-16.4-out.png.en)
16.5
![](Files/answers-to-exercises-16.5-out.png.en)
16.6
![](Files/answers-to-exercises-16.6-out.png.en)
16.7
![](Files/answers-to-exercises-16.7-out.png.en)
16.8
![](Files/answers-to-exercises-16.8-out.png.en)
16.9
![](Files/answers-to-exercises-16.9-out.png.en)
16.10
![](Files/answers-to-exercises-16.10-out.png.en)
16.11
![](Files/answers-to-exercises-16.11-out.png.en)
16.12
![](Files/answers-to-exercises-16.12-out.png.en)
16.13
![](Files/answers-to-exercises-16.13-out.png.en)
+16.1
![](Files/answers-to-exercises-x16.1-out.png.en)
+16.2
![](Files/answers-to-exercises-x16.2-out.png.en)
+16.3
![](Files/answers-to-exercises-x16.3-out.png.en)
17Units
17.1
![](Files/answers-to-exercises-17.1-out.png.en)
17.2
![](Files/answers-to-exercises-17.2-out.png.en)
17.3
![](Files/answers-to-exercises-17.3-out.png.en)
17.4
![](Files/answers-to-exercises-17.4-out.png.en)
17.5
![](Files/answers-to-exercises-17.5-out.png.en)
17.6
![](Files/answers-to-exercises-17.6-out.png.en)
17.7
![](Files/answers-to-exercises-17.7-out.png.en)
17.8
![](Files/answers-to-exercises-17.8-out.png.en)
17.9
![](Files/answers-to-exercises-17.9-out.png.en)
17.10
![](Files/answers-to-exercises-17.10-out.png.en)
17.11
![](Files/answers-to-exercises-17.11-out.png.en)
17.12
![](Files/answers-to-exercises-17.12-out.png.en)
17.13
![](Files/answers-to-exercises-17.13-out.png.en)
17.14
![](Files/answers-to-exercises-17.14-out.png.en)
+17.1
![](Files/answers-to-exercises-x17.1-out.png.en)
+17.2
![](Files/answers-to-exercises-x17.2-out.png.en)
+17.3
![](Files/answers-to-exercises-x17.3-out.png.en)
+17.4
![](Files/answers-to-exercises-x17.4-out.png.en)
+17.5
![](Files/answers-to-exercises-x17.5-out.png.en)
+17.6
![](Files/answers-to-exercises-x17.6-out.png.en)
18Geocomputation
18.1
![](Files/answers-to-exercises-18.1-out.png.en)
18.2
![](Files/answers-to-exercises-18.2-out.png.en)
18.3
![](Files/answers-to-exercises-18.3-out.png.en)
18.4
![](Files/answers-to-exercises-18.4-out.png.en)
18.5
![](Files/answers-to-exercises-18.5-out.png.en)
18.6
![](Files/answers-to-exercises-18.6-out.png.en)
18.7
![](Files/answers-to-exercises-18.7-out.png.en)
18.8
![](Files/answers-to-exercises-18.8-out.png.en)
18.9
![](Files/answers-to-exercises-18.9-out.png.en)
18.10
![](Files/answers-to-exercises-18.10-out.png.en)
18.11
![](Files/answers-to-exercises-18.11-out.png.en)
18.12
![](Files/answers-to-exercises-18.12-out.png.en)
18.13
![](Files/answers-to-exercises-18.13-out.png.en)
+18.1
![](Files/answers-to-exercises-x18.1-out.png.en)
+18.2
![](Files/answers-to-exercises-x18.2-out.png.en)
+18.3
![](Files/answers-to-exercises-x18.3-out.png.en)
+18.4
![](Files/answers-to-exercises-x18.4-out.png.en)
+18.5
![](Files/answers-to-exercises-x18.5-out.png.en)
+18.6
![](Files/answers-to-exercises-x18.6-out.png.en)
+18.7
![](Files/answers-to-exercises-x18.7-out.png.en)
19Dates and Times
19.1
![](Files/answers-to-exercises-19.1-out.png.en)
19.2
![](Files/answers-to-exercises-19.2-out.png.en)
19.3
![](Files/answers-to-exercises-19.3-out.png.en)
19.4
![](Files/answers-to-exercises-19.4-out.png.en)
19.5
![](Files/answers-to-exercises-19.5-out.png.en)
19.6
![](Files/answers-to-exercises-19.6-out.png.en)
19.7
![](Files/answers-to-exercises-19.7-out.png.en)
19.8
![](Files/answers-to-exercises-19.8-out.png.en)
19.9
![](Files/answers-to-exercises-19.9-out.png.en)
19.10
![](Files/answers-to-exercises-19.10-out.png.en)
19.11
![](Files/answers-to-exercises-19.11-out.png.en)
19.12
![](Files/answers-to-exercises-19.12-out.png.en)
19.13
![](Files/answers-to-exercises-19.13-out.png.en)
19.14
![](Files/answers-to-exercises-19.14-out.png.en)
19.15
![](Files/answers-to-exercises-19.15-out.png.en)
+19.1
![](Files/answers-to-exercises-x19.1-out.png.en)
+19.2
![](Files/answers-to-exercises-x19.2-out.png.en)
+19.3
![](Files/answers-to-exercises-x19.3-out.png.en)
+19.4
![](Files/answers-to-exercises-x19.4-out.png.en)
+19.5
+19.6
![](Files/answers-to-exercises-x19.6-out.png.en)
+19.7
![](Files/answers-to-exercises-x19.7-out.png.en)
20Options
20.1
![](Files/answers-to-exercises-20.1-out.png.en)
20.2
![](Files/answers-to-exercises-20.2-out.png.en)
20.3
![](Files/answers-to-exercises-20.3-out.png.en)
20.4
![](Files/answers-to-exercises-20.4-out.png.en)
20.5
![](Files/answers-to-exercises-20.5-out.png.en)
20.6
![](Files/answers-to-exercises-20.6-out.png.en)
20.7
![](Files/answers-to-exercises-20.7-out.png.en)
20.8
![](Files/answers-to-exercises-20.8-out.png.en)
20.9
![](Files/answers-to-exercises-20.9-out.png.en)
20.10
![](Files/answers-to-exercises-20.10-out.png.en)
20.11
![](Files/answers-to-exercises-20.11-out.png.en)
20.12
![](Files/answers-to-exercises-20.12-out.png.en)
20.13
![](Files/answers-to-exercises-20.13-out.png.en)
20.14
![](Files/answers-to-exercises-20.14-out.png.en)
+20.1
![](Files/answers-to-exercises-x20.1-out.png.en)
+20.2
![](Files/answers-to-exercises-x20.2-out.png.en)
+20.3
![](Files/answers-to-exercises-x20.3-out.png.en)
+20.4
![](Files/answers-to-exercises-x20.4-out.png.en)
+20.5
![](Files/answers-to-exercises-x20.5-out.png.en)
+20.6
![](Files/answers-to-exercises-x20.6-out.png.en)
+20.7
![](Files/answers-to-exercises-x20.7-out.png.en)
+20.8
![](Files/answers-to-exercises-x20.8-out.png.en)
21Graphs and Networks
21.1
![](Files/answers-to-exercises-21.1-out.png.en)
21.2
![](Files/answers-to-exercises-21.2-out.png.en)
21.3
![](Files/answers-to-exercises-21.3-out.png.en)
21.4
![](Files/answers-to-exercises-21.4-out.png.en)
21.5
![](Files/answers-to-exercises-21.5-out.png.en)
21.6
![](Files/answers-to-exercises-21.6-out.png.en)
21.7
![](Files/answers-to-exercises-21.7-out.png.en)
21.8
![](Files/answers-to-exercises-21.8-out.png.en)
21.9
![](Files/answers-to-exercises-21.9-out.png.en)
21.10
![](Files/answers-to-exercises-21.10-out.png.en)
21.11
![](Files/answers-to-exercises-21.11-out.png.en)
+21.1
![](Files/answers-to-exercises-x21.1-out.png.en)
+21.2
![](Files/answers-to-exercises-x21.2-out.png.en)
+21.3
![](Files/answers-to-exercises-x21.3-out.png.en)
+21.4
![](Files/answers-to-exercises-x21.4-out.png.en)
+21.5
![](Files/answers-to-exercises-x21.5-out.png.en)
+21.6
![](Files/answers-to-exercises-x21.6-out.png.en)
+21.7
![](Files/answers-to-exercises-x21.7-out.png.en)
22Machine Learning
22.1
![](Files/answers-to-exercises-22.1-out.png.en)
22.2
![](Files/answers-to-exercises-22.2-out.png.en)
22.3
![](Files/answers-to-exercises-22.3-out.png.en)
22.4
![](Files/answers-to-exercises-22.4-out.png.en)
22.5
![](Files/answers-to-exercises-22.5-out.png.en)
22.6
![](Files/answers-to-exercises-22.6-out.png.en)
22.7
![](Files/answers-to-exercises-22.7-out.png.en)
22.8
![](Files/answers-to-exercises-22.8-out.png.en)
22.9
![](Files/answers-to-exercises-22.9-out.png.en)
22.10
![](Files/answers-to-exercises-22.10-out.png.en)
22.11
![](Files/answers-to-exercises-22.11-out.png.en)
22.12
![](Files/answers-to-exercises-22.12-out.png.en)
22.13
![](Files/answers-to-exercises-22.13-out.png.en)
22.14
![](Files/answers-to-exercises-22.14-out.png.en)
22.15
![](Files/answers-to-exercises-22.15-out.png.en)
22.16
![](Files/answers-to-exercises-22.16-out.png.en)
+22.1
![](Files/answers-to-exercises-x22.1-out.png.en)
+22.2
![](Files/answers-to-exercises-x22.2-out.png.en)
+22.3
![](Files/answers-to-exercises-x22.3-out.png.en)
+22.4
![](Files/answers-to-exercises-x22.4-out.png.en)
+22.5
![](Files/answers-to-exercises-x22.5-out.png.en)
+22.6
![](Files/answers-to-exercises-x22.6-out.png.en)
+22.7
![](Files/answers-to-exercises-x22.7-out.png.en)
23More about Numbers
23.1
![](Files/answers-to-exercises-23.1-out.png.en)
23.2
![](Files/answers-to-exercises-23.2-out.png.en)
23.3
![](Files/answers-to-exercises-23.3-out.png.en)
23.4
![](Files/answers-to-exercises-23.4-out.png.en)
23.5
![](Files/answers-to-exercises-23.5-out.png.en)
23.6
![](Files/answers-to-exercises-23.6-out.png.en)
23.7
![](Files/answers-to-exercises-23.7-out.png.en)
23.8
![](Files/answers-to-exercises-23.8-out.png.en)
23.9
![](Files/answers-to-exercises-23.9-out.png.en)
23.10
![](Files/answers-to-exercises-23.10-out.png.en)
23.11
![](Files/answers-to-exercises-23.11-out.png.en)
23.12
![](Files/answers-to-exercises-23.12-out.png.en)
23.13
![](Files/answers-to-exercises-23.13-out.png.en)
23.14
![](Files/answers-to-exercises-23.14-out.png.en)
+23.1
![](Files/answers-to-exercises-x23.1-out.png.en)
+23.2
![](Files/answers-to-exercises-x23.2-out.png.en)
+23.3
![](Files/answers-to-exercises-x23.3-out.png.en)
+23.4
![](Files/answers-to-exercises-x23.4-out.png.en)
24More Forms of Visualization
24.1
![](Files/answers-to-exercises-24.1-out.png.en)
24.2
![](Files/answers-to-exercises-24.2-out.png.en)
24.3
![](Files/answers-to-exercises-24.3-out.png.en)
24.4
![](Files/answers-to-exercises-24.4-out.png.en)
24.5
![](Files/answers-to-exercises-24.5-out.png.en)
24.6
![](Files/answers-to-exercises-24.6-out.png.en)
24.7
![](Files/answers-to-exercises-24.7-out.png.en)
24.8
![](Files/answers-to-exercises-24.8-out.png.en)
24.9
![](Files/answers-to-exercises-24.9-out.png.en)
24.10
![](Files/answers-to-exercises-24.10-out.png.en)
24.11
![](Files/answers-to-exercises-24.11-out.png.en)
+24.1
![](Files/answers-to-exercises-x24.1-out.png.en)
25Ways to Apply Functions
25.1
![](Files/answers-to-exercises-25.1-out.png.en)
25.2
![](Files/answers-to-exercises-25.2-out.png.en)
25.3
![](Files/answers-to-exercises-25.3-out.png.en)
25.4
![](Files/answers-to-exercises-25.4-out.png.en)
25.5
![](Files/answers-to-exercises-25.5-out.png.en)
25.6
![](Files/answers-to-exercises-25.6-out.png.en)
25.7
![](Files/answers-to-exercises-25.7-out.png.en)
25.8
![](Files/answers-to-exercises-25.8-out.png.en)
25.9
![](Files/answers-to-exercises-25.9-out.png.en)
26Pure Anonymous Functions
26.1
![](Files/answers-to-exercises-26.1-out.png.en)
26.2
![](Files/answers-to-exercises-26.2-out.png.en)
26.3
![](Files/answers-to-exercises-26.3-out.png.en)
26.4
![](Files/answers-to-exercises-26.4-out.png.en)
26.5
![](Files/answers-to-exercises-26.5-out.png.en)
26.6
![](Files/answers-to-exercises-26.6-out.png.en)
26.7
![](Files/answers-to-exercises-26.7-out.png.en)
26.8
![](Files/answers-to-exercises-26.8-out.png.en)
+26.1
![](Files/answers-to-exercises-x26.1-out.png.en)
27Applying Functions Repeatedly
27.1
![](Files/answers-to-exercises-27.1-out.png.en)
27.2
![](Files/answers-to-exercises-27.2-out.png.en)
27.3
![](Files/answers-to-exercises-27.3-out.png.en)
27.4
![](Files/answers-to-exercises-27.4-out.png.en)
27.5
![](Files/answers-to-exercises-27.5-out.png.en)
27.6
![](Files/answers-to-exercises-27.6-out.png.en)
27.7
![](Files/answers-to-exercises-27.7-out.png.en)
27.8
![](Files/answers-to-exercises-27.8-out.png.en)
27.9
![](Files/answers-to-exercises-27.9-out.png.en)
27.10
![](Files/answers-to-exercises-27.10-out.png.en)
27.11
![](Files/answers-to-exercises-27.11-out.png.en)
+27.1
![](Files/answers-to-exercises-x27.1-out.png.en)
+27.2
![](Files/answers-to-exercises-x27.2-out.png.en)
+27.3
![](Files/answers-to-exercises-x27.3-out.png.en)
+27.4
![](Files/answers-to-exercises-x27.4-out.png.en)
+27.5
![](Files/answers-to-exercises-x27.5-out.png.en)
28Tests and Conditionals
28.1
![](Files/answers-to-exercises-28.1-out.png.en)
28.2
![](Files/answers-to-exercises-28.2-out.png.en)
28.3
![](Files/answers-to-exercises-28.3-out.png.en)
28.4
![](Files/answers-to-exercises-28.4-out.png.en)
28.5
![](Files/answers-to-exercises-28.5-out.png.en)
28.6
![](Files/answers-to-exercises-28.6-out.png.en)
28.7
![](Files/answers-to-exercises-28.7-out.png.en)
28.8
![](Files/answers-to-exercises-28.8-out.png.en)
28.9
![](Files/answers-to-exercises-28.9-out.png.en)
28.10
![](Files/answers-to-exercises-28.10-out.png.en)
28.11
![](Files/answers-to-exercises-28.11-out.png.en)
28.12
![](Files/answers-to-exercises-28.12-out.png.en)
28.13
![](Files/answers-to-exercises-28.13-out.png.en)
+28.1
![](Files/answers-to-exercises-x28.1-out.png.en)
+28.2
![](Files/answers-to-exercises-x28.2-out.png.en)
+28.3
![](Files/answers-to-exercises-x28.3-out.png.en)
+28.4
![](Files/answers-to-exercises-x28.4-out.png.en)
+28.5
![](Files/answers-to-exercises-x28.5-out.png.en)
+28.6
![](Files/answers-to-exercises-x28.6-out.png.en)
+28.7
![](Files/answers-to-exercises-x28.7-out.png.en)
29More about Pure Functions
29.1
![](Files/answers-to-exercises-29.1-out.png.en)
29.2
![](Files/answers-to-exercises-29.2-out.png.en)
29.3
![](Files/answers-to-exercises-29.3-out.png.en)
29.4
![](Files/answers-to-exercises-29.4-out.png.en)
29.5
![](Files/answers-to-exercises-29.5-out.png.en)
29.6
![](Files/answers-to-exercises-29.6-out.png.en)
+29.1
![](Files/answers-to-exercises-x29.1-out.png.en)
30Rearranging Lists
30.1
![](Files/answers-to-exercises-30.1-out.png.en)
30.2
![](Files/answers-to-exercises-30.2-out.png.en)
30.3
![](Files/answers-to-exercises-30.3-out.png.en)
30.4
![](Files/answers-to-exercises-30.4-out.png.en)
30.5
![](Files/answers-to-exercises-30.5-out.png.en)
30.6
![](Files/answers-to-exercises-30.6-out.png.en)
30.7
![](Files/answers-to-exercises-30.7-out.png.en)
30.8
![](Files/answers-to-exercises-30.8-out.png.en)
30.9
![](Files/answers-to-exercises-30.9-out.png.en)
30.10
![](Files/answers-to-exercises-30.10-out.png.en)
30.11
![](Files/answers-to-exercises-30.11-out.png.en)
30.12
![](Files/answers-to-exercises-30.12-out.png.en)
30.13
![](Files/answers-to-exercises-30.13-out.png.en)
30.14
![](Files/answers-to-exercises-30.14-out.png.en)
30.15
![](Files/answers-to-exercises-30.15-out.png.en)
30.16
![](Files/answers-to-exercises-30.16-out.png.en)
30.17
![](Files/answers-to-exercises-30.17-out.png.en)
30.18
![](Files/answers-to-exercises-30.18-out.png.en)
30.19
![](Files/answers-to-exercises-30.19-out.png.en)
30.20
![](Files/answers-to-exercises-30.20-out.png.en)
30.21
![](Files/answers-to-exercises-30.21-out.png.en)
+30.1
![](Files/answers-to-exercises-x30.1-out.png.en)
+30.2
![](Files/answers-to-exercises-x30.2-out.png.en)
+30.3
![](Files/answers-to-exercises-x30.3-out.png.en)
+30.4
![](Files/answers-to-exercises-x30.4-out.png.en)
+30.5
![](Files/answers-to-exercises-x30.5-out.png.en)
+30.6
![](Files/answers-to-exercises-x30.6-out.png.en)
+30.7
![](Files/answers-to-exercises-x30.7-out.png.en)
+30.8
![](Files/answers-to-exercises-x30.8-out.png.en)
+30.9
![](Files/answers-to-exercises-x30.9-out.png.en)
+30.10
![](Files/answers-to-exercises-x30.10-out.png.en)
+30.11
![](Files/answers-to-exercises-x30.11-out.png.en)
+30.12
![](Files/answers-to-exercises-x30.12-out.png.en)
+30.13
![](Files/answers-to-exercises-x30.13-out.png.en)
31Parts of Lists
31.1
![](Files/answers-to-exercises-31.1-out.png.en)
31.2
![](Files/answers-to-exercises-31.2-out.png.en)
31.3
![](Files/answers-to-exercises-31.3-out.png.en)
31.4
![](Files/answers-to-exercises-31.4-out.png.en)
31.5
![](Files/answers-to-exercises-31.5-out.png.en)
31.6
![](Files/answers-to-exercises-31.6-out.png.en)
31.7
![](Files/answers-to-exercises-31.7-out.png.en)
31.8
![](Files/answers-to-exercises-31.8-out.png.en)
31.9
![](Files/answers-to-exercises-31.9-out.png.en)
31.10
![](Files/answers-to-exercises-31.10-out.png.en)
31.11
![](Files/answers-to-exercises-31.11-out.png.en)
31.12
![](Files/answers-to-exercises-31.12-out.png.en)
31.13
![](Files/answers-to-exercises-31.13-out.png.en)
32Patterns
32.1
![](Files/answers-to-exercises-32.1-out.png.en)
32.2
![](Files/answers-to-exercises-32.2-out.png.en)
32.3
![](Files/answers-to-exercises-32.3-out.png.en)
32.4
![](Files/answers-to-exercises-32.4-out.png.en)
32.5
![](Files/answers-to-exercises-32.5-out.png.en)
32.6
![](Files/answers-to-exercises-32.6-out.png.en)
32.7
![](Files/answers-to-exercises-32.7-out.png.en)
32.8
![](Files/answers-to-exercises-32.8-out.png.en)
33Expressions and Their Structure
33.1
![](Files/answers-to-exercises-33.1-out.png.en)
33.2
![](Files/answers-to-exercises-33.2-out.png.en)
33.3
![](Files/answers-to-exercises-33.3-out.png.en)
33.4
![](Files/answers-to-exercises-33.4-out.png.en)
33.5
![](Files/answers-to-exercises-33.5-out.png.en)
33.6
![](Files/answers-to-exercises-33.6-out.png.en)
33.7
![](Files/answers-to-exercises-33.7-out.png.en)
33.8
![](Files/answers-to-exercises-33.8-out.png.en)
34Associations
34.1
![](Files/answers-to-exercises-34.1-out.png.en)
34.2
![](Files/answers-to-exercises-34.2-out.png.en)
34.3
![](Files/answers-to-exercises-34.3-out.png.en)
34.4
![](Files/answers-to-exercises-34.4-out.png.en)
34.5
![](Files/answers-to-exercises-34.5-out.png.en)
34.6
![](Files/answers-to-exercises-34.6-out.png.en)
35Natural Language Understanding
35.1
![](Files/answers-to-exercises-35.1-out.png.en)
35.2
![](Files/answers-to-exercises-35.2-out.png.en)
35.3
![](Files/answers-to-exercises-35.3-out.png.en)
35.4
![](Files/answers-to-exercises-35.4-out.png.en)
35.5
![](Files/answers-to-exercises-35.5-out.png.en)
35.6
![](Files/answers-to-exercises-35.6-out.png.en)
35.7
![](Files/answers-to-exercises-35.7-out.png.en)
35.8
![](Files/answers-to-exercises-35.8-out.png.en)
35.9
![](Files/answers-to-exercises-35.9-out.png.en)
35.10
![](Files/answers-to-exercises-35.10-out.png.en)
35.11
![](Files/answers-to-exercises-35.11-out.png.en)
35.12
![](Files/answers-to-exercises-35.12-out.png.en)
35.13
![](Files/answers-to-exercises-35.13-out.png.en)
35.14
![](Files/answers-to-exercises-35.14-out.png.en)
35.15
![](Files/answers-to-exercises-35.15-out.png.en)
36Creating Websites and Apps
36.1
![](Files/answers-to-exercises-36.1-out.png.en)
36.2
![](Files/answers-to-exercises-36.2-out.png.en)
36.3
![](Files/answers-to-exercises-36.3-out.png.en)
36.4
![](Files/answers-to-exercises-36.4-out.png.en)
36.5
![](Files/answers-to-exercises-36.5-out.png.en)
36.6
![](Files/answers-to-exercises-36.6-out.png.en)
36.7
![](Files/answers-to-exercises-36.7-out.png.en)
+36.1
![](Files/answers-to-exercises-x36.1-out.png.en)
+36.2
![](Files/answers-to-exercises-x36.2-out.png.en)
37Layout and Display
37.1
![](Files/answers-to-exercises-37.1-out.png.en)
37.2
![](Files/answers-to-exercises-37.2-out.png.en)
37.3
![](Files/answers-to-exercises-37.3-out.png.en)
37.4
![](Files/answers-to-exercises-37.4-out.png.en)
37.5
![](Files/answers-to-exercises-37.5-out.png.en)
37.6
![](Files/answers-to-exercises-37.6-out.png.en)
37.7
![](Files/answers-to-exercises-37.7-out.png.en)
37.8
![](Files/answers-to-exercises-37.8-out.png.en)
38Assigning Names to Things
38.1
![](Files/answers-to-exercises-38.1-out.png.en)
38.2
![](Files/answers-to-exercises-38.2-out.png.en)
38.3
![](Files/answers-to-exercises-38.3-out.png.en)
38.4
![](Files/answers-to-exercises-38.4-out.png.en)
38.5
![](Files/answers-to-exercises-38.5-out.png.en)
38.6
![](Files/answers-to-exercises-38.6-out.png.en)
38.7
![](Files/answers-to-exercises-38.7-out.png.en)
39Immediate and Delayed Values
39.1
![](Files/answers-to-exercises-39.1-out.png.en)
39.2
![](Files/answers-to-exercises-39.2-out.png.en)
40Defining Your Own Functions
Note: These exercises involve defining functions. Remember to use Clear to get rid of definitions once you’re finished with each exercise.
40.1
40.2
40.3
40.4
40.5
40.6
40.7
40.8
40.9
40.10
41More about Patterns
41.1
![](Files/answers-to-exercises-41.1-out.png.en)
41.2
![](Files/answers-to-exercises-41.2-out.png.en)
41.3
41.4
![](Files/answers-to-exercises-41.4-out.png.en)
41.5
![](Files/answers-to-exercises-41.5-out.png.en)
41.6
![](Files/answers-to-exercises-41.6-out.png.en)
41.7
![](Files/answers-to-exercises-41.7-out.png.en)
41.8
![](Files/answers-to-exercises-41.8-out.png.en)
41.9
![](Files/answers-to-exercises-41.9-out.png.en)
41.10
![](Files/answers-to-exercises-41.10-out.png.en)
41.11
![](Files/answers-to-exercises-41.11-out.png.en)
41.12
![](Files/answers-to-exercises-41.12-out.png.en)
42String Patterns and Templates
42.1
![](Files/answers-to-exercises-42.1-out.png.en)
42.2
![](Files/answers-to-exercises-42.2-out.png.en)
42.3
![](Files/answers-to-exercises-42.3-out.png.en)
42.4
![](Files/answers-to-exercises-42.4-out.png.en)
42.5
![](Files/answers-to-exercises-42.5-out.png.en)
42.6
![](Files/answers-to-exercises-42.6-out.png.en)
42.7
![](Files/answers-to-exercises-42.7-out.png.en)
42.8
![](Files/answers-to-exercises-42.8-out.png.en)
44Importing and Exporting
44.1
![](Files/answers-to-exercises-44.1-out.png.en)
44.2
![](Files/answers-to-exercises-44.2-out.png.en)
44.3
![](Files/answers-to-exercises-44.3-out.png.en)
44.4
![](Files/answers-to-exercises-44.4-out.png.en)
44.5
![](Files/answers-to-exercises-44.5-out.png.en)
44.6
![](Files/answers-to-exercises-44.6-out.png.en)
44.7
![](Files/answers-to-exercises-44.7-out.png.en)
44.8
![](Files/answers-to-exercises-44.8-out.png.en)
44.9
![](Files/answers-to-exercises-44.9-out.png.en)
45Datasets
Note: These exercises use the dataset planets=CloudGet["https://wolfr.am/7FxLgPm5"].
45.1
![](Files/answers-to-exercises-45.1-out.png.en)
45.2
![](Files/answers-to-exercises-45.2-out.png.en)
45.3
![](Files/answers-to-exercises-45.3-out.png.en)
45.4
![](Files/answers-to-exercises-45.4-out.png.en)
45.5
![](Files/answers-to-exercises-45.5-out.png.en)
45.6
![](Files/answers-to-exercises-45.6-out.png.en)
45.7
![](Files/answers-to-exercises-45.7-out.png.en)
45.8
![](Files/answers-to-exercises-45.8-out.png.en)
45.9
![](Files/answers-to-exercises-45.9-out.png.en)
45.10
![](Files/answers-to-exercises-45.10-out.png.en)
45.11
![](Files/answers-to-exercises-45.11-out.png.en)
45.12
![](Files/answers-to-exercises-45.12-out.png.en)
45.13
![](Files/answers-to-exercises-45.13-out.png.en)
46Audio & Video
46.1
![](Files/answers-to-exercises-46.1-out.png.en)
46.2
![](Files/answers-to-exercises-46.2-out.png.en)
46.3
![](Files/answers-to-exercises-46.3-out.png.en)
46.4
![](Files/answers-to-exercises-46.4-out.png.en)
46.5
![](Files/answers-to-exercises-46.5-out.png.en)
46.6
![](Files/answers-to-exercises-46.6-out.png.en)
46.7
![](Files/answers-to-exercises-46.7-out.png.en)
46.8
![](Files/answers-to-exercises-46.8-out.png.en)
46.9
![](Files/answers-to-exercises-46.9-out.png.en)
46.10
![](Files/answers-to-exercises-46.10-out.png.en)
46.11
![](Files/answers-to-exercises-46.11-out.png.en)
46.12
![](Files/answers-to-exercises-46.12-out.png.en)
47Writing Good Code
47.1
![](Files/answers-to-exercises-47.1-out.png.en)
47.2
![](Files/answers-to-exercises-47.2-out.png.en)
47.3
![](Files/answers-to-exercises-47.3-out.png.en)
47.4
![](Files/answers-to-exercises-47.4-out.png.en)
47.5
![](Files/answers-to-exercises-47.5-out.png.en)
48Debugging Your Code
48.1
![](Files/answers-to-exercises-48.1-out.png.en)
48.2
![](Files/answers-to-exercises-48.2-out.png.en)
48.3
![](Files/answers-to-exercises-48.3-out.png.en)