In geometry, a demiocteract or 8-demicube is a uniform 8-polytope, constructed from the 8-hypercube, octeract, with alternated vertices removed. It is part of a dimensionally infinite family of uniform polytopes called demihypercubes. E. L. Elte identified it in 1912 as a semiregular polytope, labeling it as HM8 for an 8-dimensional half measure polytope. Coxeter named this polytope as 151 from its Coxeter diagram, with a ring on one of the 1-length branches, and Schläfli symbol or {3,35,1}. (Wikipedia).

From playlist Japan: soroban and Flash anzan

MegaFavNumbers: Plus One Primes, 154,641,337, and 62,784,382,823

My entry in the #MegaFavNumbers series looks at a particularly striking example of a very specific family of primes -- and how it connects to what digits can be the final digit of primes in different bases.

From playlist MegaFavNumbers

8ECM Invited Lecture: Aleksey Kostenko

From playlist 8ECM Invited Lectures

CityVideoFINAL 5-30-11_ youtube

From playlist AMATYC New Orleans Videos

MegaFavNumbers :- Evenly Primest Prime 232,222,222,222,233,333,333,222,222,222,222,222,322,222,223

#MegaFavNumber

From playlist MegaFavNumbers

From playlist OpenAI Five (Dota 2)

This Problem Stumped Vietnamese Students - Solution To Viral Puzzler

This problem was asked to students in Vietnam. Can you figure it out? Place the numbers 1 to 9, using each number once, to make a valid equation. In this video I explain how you can solve this problem logically. UPDATE: I've posted all 136 solutions, at the end of this description, found

From playlist Viral Math Memes

Decomposing a mixed number | Fractions | Pre-Algebra | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/cc-fourth-grade-math/imp-fractions-2/imp-decomposing-fractions/v/decomposing-a-mixed-number Decomposing mixed numbers is a pretty straightforward process. It's as

From playlist Fractions | Pre-Algebra | Khan Academy

This video tutorial explains how to convert decimal to octal numbers. It contains plenty of examples and practice problems. My Website: https://www.video-tutor.net Patreon Donations: https://www.patreon.com/MathScienceTutor Amazon Store: https://www.amazon.com/shop/theorganicchemistry

From playlist Number Systems

Determine the Product and Quotients of Integers (Review II)

This video reviews the formal rules for multiplying and dividing integers.

From playlist Multiplying and Dividing Integers

More on the concept of multiplication | Multiplication and division | Arithmetic | Khan Academy

Use arrays and repeated addition to multiply. Watch the next lesson: https://www.khanacademy.org/math/arithmetic/multiplication-division/mult-div-concept/v/the-idea-of-division?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic Missed the previous lesson? https://www.khanacademy.org

From playlist 4th Grade | Get Ready for Grade Level | Khan Academy

This video tutorial explains how to convert octal to decimal numbers. The octal system is a base 8 system while the decimal system is a base 10 system. Subscribe: https://www.youtube.com/channel/UCEWpbFLzoYGPfuWUMFPSaoA?sub_confirmation=1 Access to Premium Videos: https://www.patreon.co

From playlist Number Systems

Everything You Need to Know About JPEG - Episode 3: Bitmap Output

In this series you will learn all of the in-depth details of the complex and sophisticated JPEG image compression format In this episode, we learn how to write all of the pixel data in the MCUs to a bitmap file Jump into the playlist here: https://www.youtube.com/watch?v=ldsdJqGr9uc&list

From playlist Fourier

Number Theory | When is there a square root of 2 modulo p?

We classify the primes for which 2 is a quadratic residue. http://www.michael-penn.net http://www.randolphcollege.edu/mathematics/

From playlist Number Theory

Evaluate the Improper Integral 3/sqrt(8 - x) from 0 to 8 Example with Infinite Discontinuity

Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Evaluate the Improper Integral 3/sqrt(8 - x) from 0 to 8 Example with Infinite Discontinuity

From playlist Calculus 2 Exam 3 Playlist

Panicks28's MegaFavNumber, 8-bit Video Game and Properties

Part of the contribution to #MegaFavNumbers. Thanks to the 8-bit video game by Nintendo. Thanks to the math youtubers that host this event. Thanks to the people that uploaded their own MegaFavNumber video. Thanks to you for watching this video. Playlist of Mega Favorite Numbers: https://w

From playlist MegaFavNumbers

"Find factors or multiples of a number."

From playlist Number: Factors, Multiples & Primes