  In this paper, a modified symbolic computation approach is proposed. The
multiple rogue wave solutions of a generalized (2+1)-dimensional Boussinesq
equation are obtained by using the modified symbolic computation approach.
Dynamics features of these obtained multiple rogue wave solutions are displayed
in 3D and contour plots. Compared with the original symbolic computation
approach, our method does not need to find Hirota bilinear form of nonlinear
system.
