From the creators of "e is irrational" comes now the proof that pi is irrational. This proof is originally due to Niven and only uses calculus, but it is very non-intuitive. That said, it is absolutely fascinating, so be prepared for a fun ride!

In this video I use diagonalization to find an explicit formula for the Fibonacci sequence. Enjoy!

derivative of ln(1+1/x), two ways, calculus 1 derivative example, how to take the derivative, logarithmic derivative, blackpenredpen, math for fun, https://t...

The number N = 69,720,375,229,712,477,164,533,808,935,312,303,556,800 is special - it is the smallest number that has all numbers 1 to 100 as factors. The p...

More derivative examples:
derivative of x^x, two ways: https://youtu.be/l-iLg07zavc
100 derivatives: https://youtu.be/AegzQ_dip8k

shop math t-shirts and hoodies: https://teespring.com/stores/blackpenredpen

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We will compare log_2(3) vs log_3(5) to see which logarithm has a larger value. Of course, we will not be using a calculator. This is actually a coffin question. Special thanks to Zonnymaka for the recommendation. See more coffin math questions here: htt…

Programa de Iniciação Científica: Introdução à Álgebra Linear - Aula 03 Professor: Jorge Passamani Zubelli http://lamca.impa.br/linear_algebra_2018 Aulas ant...

Make sure you first see the main video at: https://youtu.be/G1m7goLCJDY
More links in full denoscription below... Please look ↓↓↓

Featuring Matt Parker and Charlie Turner

Things to Make and Do in the Fourth Dimension by Matt Parker:
http://amzn.to/2mksdD5…

Matt Parker discusses a problem involving Square Sums. Go deeper with extra footage: https://youtu.be/7_ph5djCCnM
More links & stuff in full denoscription below ↓↓↓

More Matt Parker on Numberphile: http://bit.ly/Matt_Videos
Matt's projects and other stuff:…