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

Table 9

Values of condition number and RMSE for some values of 𝑟 of Experiment 3 (for IRBFN method on the polar coordinate [17]).

r	Condition number	RMSE
0.001	1.433292009119422	7.73×10^−8
0.01	1.833381468640938	𝟑.𝟑𝟏×𝟏𝟎^−𝟖
0.5	1.641721037366621	6.01×10^−8
1.0	2.368533981239234	2.91×10^−8
1.5	6.742734977317889	3.47×10^−8
2.0	7.268116615890860	1.33×10^−8
2.5	19.12284221789496	8.78×10^−9
3.0	56.72352660443333	9.62×10^−9
3.5	83.76935856474893	2.20×10^−8
4.0	101.1762326758897	9.00×10^−9
4.5	164.9216307945755	6.81×10^−9