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Table 9 The convergence order for R-CFDS4 at \(\tau =0.0025\)

From: A reduced fourth-order compact difference scheme based on a proper orthogonal decomposition technique for parabolic equations

Spatial step size

Maximum error

Convergence order

h = 0.05

0.017367

 

h = 0.025

0.001197

3.8588

h = 0.0125

0.000076

3.9772

h = 0.00625

4.841e − 06

3.9726