Base-dependent integer sequences
In recreational mathematics, a repunit is a number like 11, 111, or 1111 that contains only the digit 1 — a more specific type of repdigit. The term stands for repeated unit and was coined in 1966 by in his book Recreations in the Theory of Numbers. A repunit prime is a repunit that is also a prime number. Primes that are repunits in base-2 are Mersenne primes. As of March 2022, the largest known prime number 282,589,933 − 1, the largest probable prime R8177207 and the largest elliptic curve primality prime R49081 are all repunits. (Wikipedia).
Clojure - the Reader and Evaluator (4/4)
Part of a series teaching the Clojure language. For other programming topics, visit http://codeschool.org
From playlist the Clojure language
Eteinne Farcot - The Multiradial Represenation of IUT
http://www.nottingham.ac.uk/cmmb/people/etienne.farcot
From playlist Mathematical Shenanigans
Clojure - the Reader and Evaluator (2/4)
Part of a series teaching the Clojure language. For other programming topics, visit http://codeschool.org
From playlist the Clojure language
An general explanation of the underactive thyroid.
From playlist For Patients
Trigonometry 8 The Tangent and Cotangent of the Sum and Difference of Two Angles.mov
Derive the tangent and cotangent trigonometric identities.
From playlist Trigonometry
Primes without a 7 - Numberphile
James Maynard discusses his proof that infinite primes exist missing each base 10 digit - he uses 7 as his arbitrary example. More links & stuff in full description below ↓↓↓ More videos with James Maynard: http://bit.ly/JamesMaynard The paper on primes with restricted digits: https://ar
From playlist James Maynard on Numberphile
In this video, I define what it means to rearrange (or reshuffle) a series and show that if a series converges absolutely, then any rearrangement of the series converges to the same limit. Interesting Consequence: https://youtu.be/Mw7ocynGVmw Series Playlist: https://www.youtube.com/play
From playlist Series
From playlist Trigonometry TikToks
What is set subtraction? In this video we go over that, the set minus set operation, and an example of subtraction in set theory. This is a handy concept to grasp to understand the complement of a set and universal sets, which I also have videos on. Links below. I hope you find this vide
From playlist Set Theory