Sarafian Haiduke2018-05-152018-05-152014-06World Journal of Mechanics, 2014, 4, 197-201dx.doi.org/10.4236/wjm.2014.46020http://hdl.handle.net/123456789/1427Motion of a point-like massive particle under the influence of two nonidentical linear springs conducive to an irregular planar oscillation is analyzed. For a two dimensional oscillations the equation of motion is a coupled highly nonlinear differential equation. The set of equations cannot be solved analytically. Utilizing a Computer Algebra System (CAS) such as Mathematica [1] we solve the equations numerically. Kinematics of the particle is presented. For a comprehensive visual understanding the oscillations are simulated. We also include an extended atlas of useful two-dimensional time-folded diagramsen2D Nonlinear OscillatorComputer Algebra SystemMathematicaArticle