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Table 4 Comparison of the maximum absolute error of Example 5.1 of the proposed scheme and the result in Example 5.2

From: Solving singularly perturbed fredholm integro-differential equation using exact finite difference method

\( \varepsilon \downarrow \)

N \( \rightarrow \) \( 2^5 \)

\( 2^6 \)

\( 2^7 \)

\( 2^8 \)

\( 2^9 \)

\( 2^{10} \)

Proposed scheme

\( 2^{0} \)

1.4021e-05

3.5078e-06

8.7725e-07

2.1932e-07

5.4820e-08

1.3692e-08

\( 2^{-2} \)

4.0894e-05

1.0233e-05

2.5588e-06

6.3973e-07

1.5993e-07

3.9962e-08

\( 2^{-4} \)

8.3355e-05

2.0870e-05

5.2203e-06

1.3052e-06

3.2632e-07

8.1577e-08

\(2^{-6}\)

1.3785e-04

3.4622e-05

8.6671e-06

2.1673e-06

5.4188e-07

1.3547e-07

\( 2^{-8} \)

2.0102e-04

5.1032e-05

1.2800e-05

3.2036e-06

8.0104e-07

2.0027e-07

Result in [9]

\( 2^{0} \)

0.02882363

0.00729132

0.00183933

0.00046239

0.00011608

0.00002906

\( 2^{-2} \)

0.02860477

0.00725102

0.0018317

0.00046143

0.00015067

0.00003785

\( 2^{-4} \)

0.04001304

0.01015697

0.00257469

0.00065085

0.0001643

0.00004139

\( 2^{-6} \)

0.04331213

0.01100204

0.00279084

0.00070696

0.00017896

0.00004527

\( 2^{-8} \)

0.04342876

0.01104697

0.00280418

0.00071231

0.00018094

0.00004593