Theory and Modern Applications
From: High order locally one-dimensional methods for solving two-dimensional parabolic equations
h
P–R scheme
Fourth order scheme (22)
Sixth order scheme (33)
Error
Rate
1/10
2.39(−10)
1.08(−12)
1.26(−14)
1/20
5.62(−11)
2.09
6.70(−14)
4.01
2.02(−16)
5.96
1/30
2.46(−11)
2.04
1.32(−14)
4.00
1.78(−17)
5.99
1/40
1.37(−11)
2.03
4.19(−15)
3.99
3.16(−18)
6.00