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

Table 6

Maximum absolute errors in the computed solution of Example 9.

ℎ=𝑘	𝑃=10		𝑃=100		𝑃=1000
	UDS	EDS	UDS	EDS	UDS	EDS
1/8	4.60𝑒−1	1.32𝑒−1	8.00𝑒−2	3.44𝑒−9	8.45𝑒−3	0.00𝑒+0
1/16	4.88𝑒−1	3.19𝑒−1	1.47𝑒−1	6.00𝑒−5	1.63𝑒−2	0.00𝑒+0
1/32	6.19𝑒−1	5.43𝑒−1	2.61𝑒−1	2.13𝑒−3	3.17𝑒−2	0.00𝑒+0
1/64	7.64𝑒−1	7.35𝑒−1	4.13𝑒−1	5.58𝑒−2	6.15𝑒−2	3.52𝑒−12
1/128	8.65𝑒−1	8.56𝑒−1	4.90𝑒−1	2.51𝑒−1	1.17𝑒−1	3.73𝑒−6