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242,842 Views • Apr 29, 2024 • Click to toggle off description
This is a short, animated visual proof demonstrating the infinite geometric series formula for any positive ratio r with r less than 1 and with positive first term a. This series is important for many results in calculus, discrete mathematics, and combinatorics.

If you like this content, you can support my work at www.buymeacoffee.com/VisualProofs Thanks!

Also, check out my playlist on geometric sums/series:    • Geometric Sums  

This animation is based on a proof by The Viewpoints 2000 group from the October 2001 issue of Mathematics Magazine page 320 (www.jstor.org/stable/2691106 ).

#mathshorts​ #mathvideo​ #math​ #calculus #mtbos​ #manim​ #animation​ #theorem​ #pww​ #proofwithoutwords​ #visualproof​ #proof​ #iteachmath #geometricsums #series #infinitesums #infiniteseries #geometric #geometricseries

To learn more about animating with manim, check out:
manim.community/
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Views : 242,842
Genre: Education
License: Standard YouTube License
Uploaded At Apr 29, 2024 ^^


warning: returnyoutubedislikes may not be accurate, this is just an estiment ehe :3
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RYD date created : 2024-10-07T17:41:18.451642Z
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150 Comments

Top Comments of this video!! :3

@МаксимАндреев-щ7б

6 months ago

This picture is like the picture for the trigonometric proof of Pythagorean theorem

490 |

@Hamza_Khan_Journey

6 months ago

Very neat perspective on the converging geometric series

67 |

@US-yw3xi

6 months ago

As the video proceeded, I saw myself learning something new and actually useful.
Thank you!

168 |

@raymitchell9736

5 months ago

Neat proof, I'm trying to recall long ago how we handled converging series... and once again those isosceles triangles are so underrated

3 |

@ethanciak2517

5 months ago

very very elegant

24 |

@Dr1z.

6 months ago

Thats brilliant. Keep making cool videos like these mate

22 |

@pelayomedina2174

6 months ago

There is a small detail, the lines only intersect if r<1, so the sum is not valid if r>=1

21 |

@vk2ig

5 months ago

Excellent proof - thank you!!!!

2 |

@Phylaetra

6 months ago

This is a brilliant visual proof! Thank you!

2 |

@SkalopSkalop-xo6mj

5 months ago

The beauty of the geometric series that you can demonstrated its sum with cool way like this besides the analytic way, and your explanation is good, great video

|

@mcalkis5771

6 months ago

What a beautiful proof. Thank you for making this.

5 |

@zix2421

4 months ago

Wow, it looks cool

2 |

@jaidenminott1213

3 weeks ago

doing this right now in calc 2. this is actually really helpful

1 |

@MoeinAlizadeh88

5 months ago

Great way of proving.

1 |

@andrewmartin2321

6 months ago

i love this proof, it’s so easy to derive i literally never will learn the formula except temporarily

1 |

@cayoford9486

6 months ago

really cool proof, and I love the way you explained it, minus it going by a bit fast and me needing to pause a couple times to take it in

41 |

@Ninja20704

6 months ago

Its interesting that this proof also shows why we need r<1 because if r>1, the lines would get further apart and never interesct.

However, I wonder if there is a variation of this proof that could get work for negative r values. That would be very interesting

39 |

@nilsalmgren4492

5 months ago

Try doing the algebra starting with x= rx+a and solve for x. x-rx = a. x(1-r) = a. x = a/(1-r)

1 |

@aidan-ator7844

6 months ago

Genuinely beautiful

1 |

@pleasednut3881

6 months ago

this is incredible

1 |

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