A New Way to Generate an Exponential Finite Difference Scheme for 2D Convection-Diffusion Equations

Table 4

Maximum absolute errors and rate of EDS0-RE and EDS-RE, Example 8 with 𝑃=100.

EDS0-RE	ℎ=𝑘	1/8	1/16	1/32	1/64	1/128
	error	3.20𝑒−3	4.71𝑒−4	4.03𝑒−5	2.83𝑒−6	2.62𝑒−7
	Rate		2.76	3.55	3.83	3.43
EDS-RE	error	1.46𝑒−3	3.26𝑒−4	3.80𝑒−5	2.75𝑒−6	2.55𝑒−7
	Rate		2.16	3.10	3.79	3.43