Egyptian fractions | Integer sequences
In mathematics, and particularly in number theory, N is a primary pseudoperfect number if it satisfies the Egyptian fraction equation where the sum is over only the prime divisors of N. (Wikipedia).
1,010,010,101,000,011 - #MegaFavNumbers
This is my submission to the #megafavnumbers project. My number is 1010010101000011, which is prime in bases 2, 3, 4, 5, 6 and 10. I've open-sourced my code: https://bitbucket.org/Bip901/multibase-primes Clarification: by "ignoring 1" I mean ignoring base 1, since this number cannot be fo
From playlist MegaFavNumbers
42 and Douglas Adams - Numberphile
Douglas Adams - who would have turned 60 on March 11 - immortalised the number 42 in The Hitchhikers Guide to the Galaxy. More links & stuff in full description below ↓↓↓ Forty-two was calculated by Deep Thought! In this video is James Grime, Phil Moriarty and Gerardo Adesso: http://www.
From playlist James Grime on Numberphile
My mega favourite number (MegaFavNumbers)
About #MegaFavNumbers: https://www.youtube.com/watch?v=A7eJb8n8zAw&list=PLar4u0v66vIodqt3KSZPsYyuULD5meoAo&index=2 My number (not included in the title in case anyone wants to try the problem): 13,223,140,496 Corrections/clarifications: 0:10: No leading zeroes are allowed, and n must b
From playlist MegaFavNumbers
MegaFavNumbers - A number with 19729 digits
This video is about my MegaFavNumber. It has 19729 digits, and it is a power of two. [This link is now broken, and I can't find it anywhere else. :( ] See all the digits here: https://sites.google.com/site/largenumbers/home/appendix/a/numbers/265536 The OEIS sequence I mentioned: https:/
From playlist MegaFavNumbers
MegaFavNumbers - Unique-digited-prime-number
I made this video as a part of the MegaFavNumbers project. In this project, YouTubers make videos about their favorite number above 1 million. The number I chose is 1,023,467. It is the smallest 7 -digit prime number with distinct digits. This is my first YouTube video. I feel that if I
From playlist MegaFavNumbers
A Microlocal Invitation to Lagrangian Fillings - Roger Casals
Joint IAS/Princeton/Montreal/Paris/Tel-Aviv Symplectic Geometry Zoominar Topic: A Microlocal Invitation to Lagrangian Fillings Speaker: Roger Casals Affiliation: University of California Davis Date: November 11, 2022 We present recent developments in symplectic geometry and explain how t
From playlist Mathematics
#MegaFavNumbers What’s your Mega Favourite Number?
From playlist MegaFavNumbers
My own choice for a number over 1,000,000 is this 617 digit boy: 251959084756578934940271832400483985714292821262040320277771378360436620207075955562640185258807844069182906412495150821892985591491761845028084891200728449926873928072877767359714183472702618963750149718246911650776133798590
From playlist MegaFavNumbers
My #MegaFavNumber is 79,873,884
My #MegaFavNumber is 79,873,884 which is the first number over 1 million that is in its own location in the digits of pi
From playlist MegaFavNumbers
This video is part of the #MegaFavNumbers trend. Watch the video to learn why I chose 1 000 017 as my Mega Favorite Number, my favorite number over 1 million.
From playlist MegaFavNumbers
Lecture 3: GFS MIT 6.824: Distributed Systems (Spring 2020) https://pdos.csail.mit.edu/6.824/
From playlist MIT 6.824 Distributed Systems (Spring 2020)
Lecture 4: Primary-Backup Replication
Lecture 4: Primary-Backup Replication MIT 6.824: Distributed Systems (Spring 2020) https://pdos.csail.mit.edu/6.824/
From playlist MIT 6.824 Distributed Systems (Spring 2020)
Transformers have many applications. They are often used to step up, or step down, voltages. They are used for impedance matching. They are used to go from an unbalanced signal to a balanced signal and in this application are sometimes referred to as baluns (BALanced UNbalanced). Examples
From playlist Electromagnetic Induction
GCSE level Electricity & Magnetism covering: Transformers (step up and step down)
From playlist GCSE Physics Revision
Electromagnetic Induction (13 of 15) Transformers, An Explanation
This video goes over an explanation of how transformers function. The equations for the relationship between the voltages, currents on the primary and secondary sides are derived with respect to the number of winding on the coils. Step-up and step-down transformers are also discussed.
From playlist Electromagnetic Induction
Lecture 14: Optimistic Concurrency Control
Lecture 14: Optimistic Concurrency Control MIT 6.824: Distributed Systems (Spring 2020) https://pdos.csail.mit.edu/6.824/
From playlist MIT 6.824 Distributed Systems (Spring 2020)
Electromagnetic Induction (14 of 15) Transformers, Example Problems
In this video I will work through several example problems for transformers. The equations for the relationship between the voltages, currents on the primary and secondary sides are derived with respect to the number of winding on the coils. Step-up and step-down transformers are also dis
From playlist Electromagnetic Induction
Seven Factor MegaFavoriteNumber
I might be a bit late to the #megafavnumbers party, but I decided to make this video to show an interesting idea I came up with. It took some months of insomnia to come up with this concept. I consider whether a certain string of numbers, characterized by the number of their factors, c
From playlist MegaFavNumbers
Nonlinear algebra, Lecture 12: "Primary Decomposition ", by Mateusz Michalek and Bernd Sturmfels
This is the twelth lecture in the IMPRS Ringvorlesung, the advanced graduate course at the Max Planck Institute for Mathematics in the Sciences.
From playlist IMPRS Ringvorlesung - Introduction to Nonlinear Algebra
