Iterative Method for Solving the Second Boundary Value Problem for Biharmonic-Type Equation

Table 5

Convergence of the method in Example 4.4 for 𝑎=0.5.

𝑏	Grid 65×65		Grid 129×129		Grid 257×257		𝐸1/𝐸2	𝐸2/𝐸3
	𝑘	𝐸1	𝑘	𝐸2	𝑘	𝐸3
0.3	5	5.1875𝑒−4	5	1.2985𝑒−4	5	3.2589𝑒−5	3.9950	3.9845
0.7	7	4.8209𝑒−4	7	1.2061𝑒−4	7	3.0184𝑒−5	3.9971	3.9958
1.0	7	4.5846𝑒−4	7	1.1495𝑒−4	7	2.9067𝑒−5	3.9883	3.9547
1.5	8	4.2213𝑒−4	8	1.0498𝑒−4	8	2.5687𝑒−5	4.0211	4.0869
2.0	9	3.9362𝑒−4	9	9.9099𝑒−5	9	2.5458𝑒−5	3.9720	3.8926
2.5	10	3.6555𝑒−4	10	9.0709𝑒−5	10	2.1945𝑒−5	4.0299	4.1335