Simulate + Animate Simple Pendulum in Python

Learn how to simulate and animate a pendulum, and make a variety of different plots:
- Theta, Theta dot vs Time
- Theta vs Theta dot (Phase Diagram)
- Animate a Pendulum
- Multiple Animations
- Custom matplotlib colors

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========= Video Chapters =========
0:00 - Intro
0:25 - Simulation
2:17 - Time Domain Plot
3:20 - Animate Time Domain
5:02 - Phase Diagram Plot
6:04 - Animate Phase Diagram
7:23 - Animate Pendulum
8:57 - Animate Everything!
10:23 - Custom Colors
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[lauraphy]

the best explanation on how to animate a simple pendulum with python i 've ever watched :) thanks a lot

[logandihel]

Not sure what happened with the audio in the second clip! Subscribe so I can buy a new mic!

[riccvven]

awesome i was using matlab but this is useful too

[theskydreamer]

on phase diagram i've got a deprecation warning: MatplotlibDeprecationWarning: Setting data with a non sequence type is deprecated since 3.7 and will be remove two minor releases later phase_dot.set_data(theta_deg[i], theta_dot_deg[i]) <==solved by putting some brackets[ ] : phase_dot.set_data([theta_deg[i]], [theta_dot_deg[i]]), on both lines.

[theskydreamer]

i've got an small issue with the snippet: animate theta, theta_dot vs time where the animation would render(.mp4) but the graph in the browser(notebook, colab) would be empty, solved by putting plt.show() after anim.save(...) line

[hariharanramamurthy]

hi, you said solve ode but what does it outputs?

[Rapha_Carpio]

Is this like math or something i dont understand

[jackdawsonanderson]

[WinError 2] The system cannot find the file specified.
Any help?
Getting this error for this line
ani.save('time_domain.mp4', writer=ffmpeg_writer)