Why Laplace Transforms Are So Useful π
Learn how Laplace transforms help analyze the forced harmonic oscillator by examining its poles, making complex problems manageable.

3Blue1Brown
489.5K views β’ Nov 5, 2025

About this video
Studying the forced harmonic oscillator by taking a Laplace transform and studying its poles.
Instead of sponsored ad reads, these lessons are funded directly by viewers: https://3b1b.co/support
An equally valuable form of support is to simply share the videos.
Home page: https://www.3blue1brown.com
Chapter on the Laplace Transform:
https://youtu.be/j0wJBEZdwLs
Chapter on the S-plane and Simple Harmonic Motion:
https://youtu.be/-j8PzkZ70Lg
Timestamps:
0:00 - Opening puzzle
1:06 - Key properties of a Laplace Transform
3:29 - Qualitative analysis with Laplace Transforms
4:29 - The Laplace Transforms of a Derivative
6:06 - The forced oscillator
11:59 - Intuition from the transformed solution
15:15 - Inverting to find a final answer
17:40 - Explaining the derivative property
------------------
These animations are largely made using a custom Python library, manim. See the FAQ comments here:
https://3b1b.co/faq#manim
Music by Vincent Rubinetti.
https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown
https://open.spotify.com/album/1dVyjwS8FBqXhRunaG5W5u
------------------
3blue1brown is a channel about animating math, in all senses of the word animate. If you're reading the bottom of a video description, I'm guessing you're more interested than the average viewer in lessons here. It would mean a lot to me if you chose to stay up to date on new ones, either by subscribing here on YouTube or otherwise following on whichever platform below you check most regularly.
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Facebook: https://www.facebook.com/3blue1brown
Patreon: https://patreon.com/3blue1brown
Website: https://www.3blue1brown.com
Instead of sponsored ad reads, these lessons are funded directly by viewers: https://3b1b.co/support
An equally valuable form of support is to simply share the videos.
Home page: https://www.3blue1brown.com
Chapter on the Laplace Transform:
https://youtu.be/j0wJBEZdwLs
Chapter on the S-plane and Simple Harmonic Motion:
https://youtu.be/-j8PzkZ70Lg
Timestamps:
0:00 - Opening puzzle
1:06 - Key properties of a Laplace Transform
3:29 - Qualitative analysis with Laplace Transforms
4:29 - The Laplace Transforms of a Derivative
6:06 - The forced oscillator
11:59 - Intuition from the transformed solution
15:15 - Inverting to find a final answer
17:40 - Explaining the derivative property
------------------
These animations are largely made using a custom Python library, manim. See the FAQ comments here:
https://3b1b.co/faq#manim
Music by Vincent Rubinetti.
https://vincerubinetti.bandcamp.com/album/the-music-of-3blue1brown
https://open.spotify.com/album/1dVyjwS8FBqXhRunaG5W5u
------------------
3blue1brown is a channel about animating math, in all senses of the word animate. If you're reading the bottom of a video description, I'm guessing you're more interested than the average viewer in lessons here. It would mean a lot to me if you chose to stay up to date on new ones, either by subscribing here on YouTube or otherwise following on whichever platform below you check most regularly.
Mailing list: https://3blue1brown.substack.com
Twitter: https://twitter.com/3blue1brown
Bluesky: https://bsky.app/profile/3blue1brown.com
Instagram: https://www.instagram.com/3blue1brown
Reddit: https://www.reddit.com/r/3blue1brown
Facebook: https://www.facebook.com/3blue1brown
Patreon: https://patreon.com/3blue1brown
Website: https://www.3blue1brown.com
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Video Information
Views
489.5K
Likes
19.0K
Duration
23:05
Published
Nov 5, 2025
User Reviews
4.8
(97)