Damped Pendulum Simulator

Inputs can accept expressions like pi/4, 2*pi, etc.

Length (L) [m]: Initial Angle (θ₀) [rad]: Angular Velocity (ω₀) [rad/s]:

Mass (m) [kg]: Damping (b) [kg/s]: End Time (T) [s]:

About This Simulation

This interactive simulator models a damped simple pendulum governed by the nonlinear second-order differential equation:

with initial conditions θ(0) = θ₀ and θ'(0) = ω₀.

Use the End Time (T) control to set simulation duration and time axis scaling.

Numerical methods: RK4 by default; switches to backward Euler for stiff overdamped cases.