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Theory and Modern Applications

Table 1 Absolute error for Example 1

From: Numerical solution of certain Cauchy singular integral equations using a collocation scheme

Node

Exact solution

Absolute error

Absolute error

Absolute error

n = 3 and m = 16

n = 5 and m = 16

n = 7 and m = 16

−1.0

0.0

8.57103 × 10−12

1.29419 × 10−11

1.71944 × 10−11

−0.9

−0.171

5.28733 × 10−12

4.82814 × 10−12

3.02805 × 10−12

−0.8

−0.288

2.76978 × 10−12

7.42573 × 10−13

2.76779 × 10−13

−0.7

−0.357

9.33587 × 10−13

8.03413 × 10−13

4.52971 × 10−14

−0.6

−0.384

3.06755 × 10−13

9.32199 × 10−13

6.80345 × 10−13

−0.5

−0.375

1.03606 × 10−12

4.42868 × 10−13

6.23890 × 10−13

−0.4

−0.336

1.33976 × 10−12

1.39888 × 10−13

1.88183 × 10−14

−0.3

−0.273

1.30285 × 10−12

5.21860 × 10−13

6.22891 × 10−13

−0.2

−0.192

1.01039 × 10−12

5.92443 × 10−13

8.7802 × 10−13

−0.1

−0.099

5.47729 × 10−13

3.78711 × 10−13

6.14328 × 10−13

0.0

0.0

7.83203 × 10−17

3.64086 × 10−17

9.54481 × 10−17

0.1

0.099

5.47895 × 10−13

3.78794 × 10−13

6.14148 × 10−13

0.2

0.192

1.01058 × 10−12

5.92471 × 10−13

8.77770 × 10−13

0.3

0.273

1.30296 × 10−12

5.21916 × 10−13

6.22558 × 10−13

0.4

0.336

1.33993 × 10−12

1.39944 × 10−13

1.91513 × 10−14

0.5

0.375

1.03628 × 10−12

4.42868 × 10−13

6.24223 × 10−13

0.6

0.384

3.06977 × 10−13

9.32199 × 10−13

6.80678 × 10−13

0.7

0.357

9.33309 × 10−13

8.03468 × 10−13

4.56302 × 10−14

0.8

0.288

2.76945 × 10−12

7.42573 × 10−13

2.76501 × 10−13

0.9

0.171

5.28688 × 10−12

4.82803 × 10−12

3.02883 × 10−12

1.0

0.0

8.57059 × 10−12

1.29418 × 10−11

1.71959 × 10−11