Numerical Solution of Poisson's Equation Using a Combination of Logarithmic and Multiquadric Radial Basis Function Networks

Table 4

Values of condition number and RMSE for some values of 𝑟 of Experiment 1 (for IRBFN method on the polar coordinate [17]).

𝑟	Condition number	RMSE
0.005	1.471481785169896	9.17×10^−10
0.01	2.037248475218950	4.36×10^−11
0.5	4.678768168755817	4.92×10^−11
1.0	7.977675155476113	2.24×10^−11
1.5	10.67180878932467	5.17×10^−11
2.0	16.72051422331341	2.08×10^−11
2.5	17.54142375428882	3.22×10^−11
3.0	22.68488788104916	1.38×10^−11
3.5	94.83497808866327	9.66×10^−12
4.0	687.3099630448350	6.79×10^−12
4.5	2251.857925768735	7.09×10^−11