Abstract
"Pendulum Pattern", which was one of the non-graphics way, was well-developed in Gestaltung area mainly in the 1970s. The form of Pendulum Pattern, which is different from the general expression in graphics, has been producing in the process. However, today, the study of Pendulum Pattern, itself is not developed as it is different to describe the basic rules. In this study, I describe Pendulum Pattern generate rules by mathematical modeling based on theories of non-linear dynamic system. I present forms with computer graphics procedure based on the modeling.