Triple Pendulum vs Wave Simulator Lab by CS

The motion of a triple pendulum is governed by a set of coupled ordinary differential equations. For certain energies its motion is chaotic. This application solves these differential equations using the Runge-Kutta method for the time stepping. You can influence the movement of the pendulum by holding your device in different positions.

Wave Simulator Lab is a beautifully designed, hands-on physics simulator for students, teachers, and curious learners. Slide the controls and instantly see how frequency, amplitude, and wavelength shape a wave — no math headaches, no equipment, just pure visual understanding. From a single sine wave to interference patterns, standing waves, damped oscillations, and real audible tones — every feature is paired with clear explanations, interactive controls, and ready-to-share visuals. Built for classrooms, study sessions, and after-school curiosity. WHY LEARNERS LOVE IT • See physics, don't just read it — every parameter updates the wave instantly • Friendly UI built for touch, with smooth animations at 60 fps • Clear, jargon-free explanations next to every concept • Quiz pack with answers explained, so mistakes turn into lessons • Designed for iPhone and iPad, light & dark mode supported FREE FEATURES • Real-time animated sine wave • Frequency, amplitude, and wavelength sliders • Automatic wave speed and period calculation • Play / pause / reset controls • Grid and axis toggles • Light, dark, and themed appearances • Basic learning library • Quiz pack with explanations UNLOCK ALL FEATURES (one-time purchase) • Remove all ads forever • All wave types — cosine, square, triangle, sawtooth, pulse, standing, damped • Compare two waves on one graph • Interference & superposition mode • Standing wave & damped wave modes • Sound wave tone generator (hear what you see) • Advanced measurement tools (ω, k, T, v) • Export wave images to share with classmates or teachers • Save unlimited custom presets • Full learn library + full quiz library • Extra themes (Space Wave, Graph Paper, and more) GREAT FOR • High school & university physics students • STEM teachers preparing live classroom demos • Homeschool families exploring science visually • Sound engineers and curious tinkerers • Anyone who wants to finally "get" waves NO SUBSCRIPTIONS. Pay once, keep forever. All your presets and preferences live safely on your device. Made with love for science classrooms and self-learners everywhere.