q

x0

0.5

1 (N-method)

1.2

1.5

2

2.5

3

3.5

1.9

3 (x3 = 2)

3

3

3

1

3

3

3

Absolute error

1.36646E−11

7.47402E−13

1.52323E−13

5.77316E−15

4.66294E−15

5.73097E−13

9.17288E−12

1.95

3

3

3

3

1

3

3

3

Absolute error

4.66294E−14

2.66454E−15

4.44089E−16

0

0

2.22045E−15

3.79696E−14

2.05

3

3

3

3

1

3

3

3

Absolute error

3.59712E−14

2.22045E−15

4.44089E−16

0

0

2.44249E−15

4.37428E−14

2.1

3

3

3

3

1

3

3

3

Absolute error

8.01581E−12

5.00933E−13

1.0747E−13

4.44089E−15

4.66294E−15

6.5481E−13

1.19822E−11