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Table 1 \(C_{1}\)-order of convergence for Test problem 1, when \(h=\frac{1}{8}\)

From: High-order compact scheme for the two-dimensional fractional Rayleigh–Stokes problem for a heated generalized second-grade fluid

τγ = 0.5γ = 0.6
\(L_{\infty }\)\(C_{1}\)-order\(L_{\infty }\)\(C_{1}\)-order
\(\tau =\frac{1}{10}\)6.9182 × 10−35.5331 × 10−3
\(\tau =\frac{1}{20}\)3.5625 × 10−30.962.9268 × 10−30.92
\(\tau = \frac{1}{40}\)1.8210 × 10−30.971.5059 × 10−30.98
\(\tau =\frac{1}{80}\)9.3190 × 10−40.977.5969 × 10−40.99