In geometry, a demihepteract or 7-demicube is a uniform 7-polytope, constructed from the 7-hypercube (hepteract) 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 HM7 for a 7-dimensional half measure polytope. Coxeter named this polytope as 141 from its Coxeter diagram, with a ring on one of the 1-length branches, and Schläfli symbol or {3,34,1}. (Wikipedia).

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From playlist MWRC 2009

From playlist OpenAI Five (Dota 2)

Vitas - The 7th Element Monatomic Music www.monatomicmusic.com Vitas Official Merch Store! ✔ https://teespring.com/stores/vitas Official Site ✔ http://vitas.com.ru Youtube ✔ http://www.youtube.com/c/VitasOfficia... Facebook ✔ https://www.facebook.com/vitas.official VKontakte ✔ https:/

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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

Definite Integral with Absolute Value |2x - 7| from 0 to 7/2

Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Definite Integral with Absolute Value |2x - 7| from 0 to 7/2

From playlist Calculus

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Visit http://ilectureonline.com for more math and science lectures! To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 We will solve the following Word Problem Ex. 2 using the INVERSE MATRIX: Find 3 numbers, such that, the difference of the 1st and 2nd

From playlist ALGEBRA CH 35 SYSTEMS OF 3 EQUATIONS

EngageNY Grade 3 Module 3 Lesson 6

EngageNY/Eureka Math Grade 3 Module 3 Lesson 6 For more videos, please visit http://bit.ly/engageportal

From playlist EngageNY Grade 3 Module 3

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Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! :) https://www.patreon.com/patrickjmt !! Inverse Matrix Using Gauss-Jordan / Row Reduction , Example 2. Here I look at a quick example of finding the inverse of a 3 x 3 matrix using Gauss - Jordan / r

From playlist All Videos - Part 1

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From playlist Eureka Math Grade 8 Module 4

Least squares examples | Alternate coordinate systems (bases) | Linear Algebra | Khan Academy

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From playlist Alternate coordinate systems (bases) | Linear Algebra | Khan Academy

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From playlist Fraction Operations

Why must every year have a Friday the 13th? SoME Entry. An introduction to Modular Arithmetic.

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From playlist Summer of Math Exposition Youtube Videos

Identity property of 0 | Arithmetic properties | Pre-Algebra | Khan Academy

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/in-in-class-6th-math-cbse/x06b5af6950647cd2:whole-numbers/x06b5af6950647cd2:identity-properties-of-0-and-1/v/identity-property-of-0 Identity property of 0 Watch

From playlist Arithmetic properties | Pre-Algebra | Khan Academy