A nonlinear Spring Pendulum is simulated. Phase plane plots for the spring motion and pendulum motion are updated accordingly. Pendulum equation is nonlinear, it is solved using ode45 of MATLAB. Mass, length, and duration of pendulum and initial values can be changed depending on the requirement.
KSSV (2022). SpringPendulum (https://www.mathworks.com/matlabcentral/fileexchange/33168-springpendulum), MATLAB Central File Exchange. Retrieved .
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