Figure 4. Numerical solution of the 2-D wave equation for various t values and P=10

From

Solving the Nonlinear Two-Dimension Wave Equation Using Dual Reciprocity Boundary Element Method

Kumars Mahmoodi, Hassan Ghassemi, Alireza Heydarian

International Journal of Partial Differential Equations and Applications. 2017, 5(1), 19-25 doi:10.12691/ijpdea-5-1-3