QTD: "a" investigation

b

g

i

1

4

0

6

8

5

7

3

9

2

b

g

i

4

6

7

0

1

3

2

9

8

5

• 0
• 1
• 2
• 4
• 8
• -1
• -2

• minimum
• 0
• maximum
• 8
• 2
• -2
• -1
• 1
• undefined

• upwards
• downwards

• wider
• 3
• 1
• narrower
• 2

• less than (<)
• greater than (>)

a

e

g

b

4

2

3

9

5

7

0

8

1

6

a

e

g

b

4

6

9

1

2

0

7

5

3

8