Comment on ``An investigation into the performance of particle swarm optimization with various chaotic maps'' (Q1666649)

Summary: This paper researched three definitions of Gauss map and found that the definition of ``Gauss map'' in the paper of \textit{A. M. Arasomwan} and \textit{A. O. Adewumi} [``An investigation into the performance of particle swarm optimization with various chaotic maps'', ibid. 2014, Article ID 178959, 17 p. (2014; \url{doi:10.1155/2014/178959})] may be incoherent with other publications. In addition, we analyzed the difference of continuous Gauss map and the floating-point Gauss map, and we pointed out that the floating-point simulation behaved significantly differently from the continuous Gauss map.