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Table 4 Numerical results for finding suitable values of η in equation (27) for \(q = \frac{1}{5}\), \(\frac{1}{2}\), \(\frac{7}{8}\) in Example 4.2, where \(\Omega (\eta )= [ \phi _{1}(\eta ) + \phi _{2}(\eta ) +1 ] ( M_{1} + \frac{M_{2}}{(1 - \zeta ) \Gamma _{q} (1 - \zeta )} ) -\eta \)

From: The existence of nonnegative solutions for a nonlinear fractional q-differential problem via a different numerical approach

n

η

Ω(η)<0

\(q = \frac{1}{ 5}\)

\(q = \frac{ 1}{ 2}\)

\(q = \frac{7}{8}\)

1

3.0000

2.1347

0.9079

0.0906

2

3.1000

2.1154

0.8693

0.0392

3

3.2000

2.0943

0.8294

4

3.3000

2.0715

0.7882

−0.0668

9

3.8000

1.9351

0.5649

−0.3480

10

3.9000

1.9036

0.5170

−0.4068

11

4.0000

1.8708

0.4681

−0.4663

12

4.1000

1.8367

0.4183

−0.5266

13

4.2000

1.8014

0.3676

−0.5877

18

4.7000

1.6077

0.1007

−0.9033

19

4.8000

1.5658

0.0449

−0.9684

20

4.9000

1.5229

−1.0340

21

5.0000

1.4790

−0.0690

−1.1002

22

5.1000

1.4342

−0.1270

−1.1670

23

5.2000

1.3884

−0.1857

−1.2344

47

7.6000

0.0745

−1.7591

−2.9806

48

7.7000

0.0126

−1.8301

−3.0577

49

7.8000

−1.9015

−3.1351

50

7.9000

−0.1126

−1.9732

−3.2127

51

8.0000

−0.1759

−2.0452

−3.2906

52

8.1000

−0.2395

−2.1176

−3.3687

53

8.2000

−0.3037

−2.1903

−3.4471