Table 1 The sampling points in the first example.

From: A time-domain Runge-Kutta dual reciprocity boundary element method for scalar wave propagation problem

Number

Locations (x, y, z)

P1

(0.2392, -0.5774, 4.792)

P2

(-0.613, -0.1219, 4.479)

P3

(0.1294, -0.483, 2.625)

P4

(-0.3437, -0.5954, 1.75)

P5

(-0.613, -0.1219, 0.8333)