q

x₀

−1.5

−1

−0.5

0.5

1

1.5

0.9

4

3

3

3

3

3

Absolute error

1.57945E−10

8.54383E−12

6.45084E−12

8.99983E−11

3.98149E−10

0.95

3

3

3

3

3

3

Absolute error

2.33324E−12

4.29878E−13

2.4869E−14

2.17604E−14

3.2685E−13

1.54754E−12

1.05

3

3

3

3

3

3

Absolute error

1.04716E−12

2.2049E−13

1.46549E−14

1.68754E−14

2.85993E−13

1.54754E−12

1.1

3

3

3

3

3

3

Absolute error

1.85532E−10

4.14198E−11

2.93099E−12

3.77964E−12

6.88853E−11

3.98203E−10

1.2

4

4

3

4

4

4

Absolute error

2.22045E−16

0

0

1.11022E−16

5.44009E−15