Research Article

Numerical Approximation of Nonlinear Klein-Gordon Equation Using an Element-Free Approach

Table 5

Values of -norm errors and -norm errors and CPU time as functions of the number of nodes (N) for the solutions of Example  3 ( = 2, = 0.1, and = 2.5).

-norm error errorCPU time (s)

131.9791 × 10−51.3049 × 10−5447.3713
219.5355 × 10−65.7505 × 10−6559.7717
512.8692 × 10−61.7171 × 10−6600.6953
1011.8512 × 10−61.3635 × 10−6650.4551
1261.4819 × 10−61.0907 × 10−6687.4458
2017.8596 × 10−75.3053 × 10−7721.8184