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Table 3 Errors obtained for Example 7.4 using various values for \(\alpha, \beta \) at different N

From: Enhanced shifted Jacobi operational matrices of derivatives: spectral algorithm for solving multiterm variable-order fractional differential equations

α

β

Errors

N = 2

N = 4

N = 6

N = 8

N = 10

N = 12

0

0

\(\|E_{N}\|_{\infty}\)

6.33×10−3

5.83×10−5

4.58×10−6

7.42×10−7

1.78×10−7

5.49×10−8

  

\(\|E_{N}\|_{2}\)

3.69×10−3

3.46×10−5

2.58×10−6

3.89×10−7

8.64×10−8

2.47×10−8

1

1

\(\|E_{N}\|_{\infty}\)

9.74×10−3

5.25×10−5

5.27×10−6

9.95×10−7

2.65×10−7

8.79×10−8

  

\(\|E_{N}\|_{2}\)

2.60×10−3

2.41×10−5

1.76×10−6

2.62×10−7

5.75×10−8

1.63×10−8

−1/3

1/3

\(\|E_{N}\|_{\infty}\)

6.39×10−3

6.11×10−5

4.79×10−6

7.75×10−7

1.86×10−7

5.71×10−8

  

\(\|E_{N}\|_{2}\)

3.67×10−3

3.15×10−5

2.39×10−6

3.26×10−7

7.03×10−8

1.96×10−8

−1/2

1/2

\(\|E_{N}\|_{\infty}\)

5.90×10−3

5.93×10−5

4.89×10−6

8.16×10−7

1.99×10−7

6.20×10−8

  

\(\|E_{N}\|_{2}\)

3.78×10−3

3.17×10−5

2.20×10−6

3.14×10−7

6.70×10−8

1.85×10−8

1/2

1/2

\(\|E_{N}\|_{\infty}\)

7.10×10−3

4.02×10−5

3.38×10−6

5.95×10−7

1.52×10−7

4.51×10−8

  

\(\|E_{N}\|_{2}\)

2.69×10−3

2.54×10−5

1.86×10−6

2.75×10−7

1.23×10−7

1.68×10−8