Math

Thanks to Arber for the suggestion! If AB = AC = AD and BAC = 50 degrees, what is the measure of BDC? This is a nice geometry problem! #Shorts Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas! If you
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One of the most famous stories from the sort of cricket involves numbers, averages, and a duck. More links & stuff in full description below ↓↓↓ Archive footage courtesy of AP Archive: https://www.youtube.com/c/aparchive * Batting average list shown was current in December 2017. It includes one still active player (Australian Steve Smith) whose average will
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This is one of the top posts on Reddit’s Homework Help. #shorts [Grade 9 Math: Puzzle Involving Toothpicks] from HomeworkHelp Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas! If you purchase through these links, I may be compensated for purchases
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High school geometry is the only super power you need to solve this puzzle! Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address in video). I consider all ideas though can’t always reply! Like many YouTubers I use popular software to prepare my videos. You can search for animation software tutorials on YouTube to learn how
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What is the distance between towns A and B? Learn how to solve this mysterious problem–a similar problem was a question to quality for the US Math Olympiad! Sources Qbyte Nick’s mathematical puzzle, number 75 http://www.qbyte.org/puzzles/p075s.html AoPS 2017 AMC 10A, problem 9 (US Olympiad qualifying test) https://artofproblemsolving.com/wiki/index.php/2017_AMC_10A_Problems/Problem_9 Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address
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Complex patterns seen in nature can be generated from relatively simple equations and a golden angle. Song credits Song: Sunflower (Spider-Man: Into the Spider-Verse) Artist: Post Malone, Swae Lee Album: Sunflower References https://en.wikipedia.org/wiki/Fibonacci_number#Nature https://en.wikipedia.org/wiki/Fermat%27s_spiral Fan Wen, CC-BY-SA-4.0 https://commons.wikimedia.org/wiki/File:Helianthus_annuus_-_flower_view_01.jpg Sunflower Javascript code https://www.codeproject.com/Articles/1221341/The-Vogel-Spiral-Phenomenon Sunflower Desmos https://www.desmos.com/calculator/vgh92uz9kl
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The slide method of multiplication is a groovy way to multiply numbers 😉 #shorts Song credits Song: Electric Boogie Artist: Marcia Griffiths A longer video: https://youtu.be/iZG25uBwU7M Article https://towardsdatascience.com/four-multiplication-methods-you-might-not-have-learned-in-school-fac2211a24b7 Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas!
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I’m sorry the clip from the show has been blocked. For more on game theory in Breaking Bad, see my post: Game Theory in Breaking Bad If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions Connect on social media. I update each site when I have a new video or blog post,
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Happy Pi Day! Sato Moshun and Leonardo da Vinci independently devised an incredible visualization to find the formula for a circle’s area. #Shorts (Apologies there was no early access on Patreon–I finished making the video just in time for Pi Day). Wikipedia https://en.wikipedia.org/wiki/Area_of_a_circle#Rearrangement_proof Cut The Knot area of a circle https://www.cut-the-knot.org/Curriculum/Geometry/AreaOfCircle.shtml Area of a circle,
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A card trick which involves some little fibs. More links & stuff in full description below ↓↓↓ Extra footage at: https://youtu.be/cw63McIDWj8 ‘Mathemagician’ Colm Mulcahy is Professor of Mathematics at Spelman College. Colm: http://cardcolm.org More cards and suffering videos: http://bit.ly/Cards_Shuffling Support us on Patreon: http://www.patreon.com/numberphile NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe:
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This is a visual way to understand Brahmagupta’s quadratic formula. #Shorts Song Credits Song: Kajra Re Singers: Alisha Chinai, Shankar Mahadevan, Javed Ali Music: Shankar-Ehsaan-Loy Lyrics: Gulzar Lucas Vieira animation https://1ucasvb.tumblr.com/post/42739093986/completing-the-square https://en.wikipedia.org/wiki/File:Completing_the_square.gif Cornell Mathematics professor David W. Henderson: Geometric Solutions of Quadratic and Cubic Equations. https://pi.math.cornell.edu/~dwh/papers/geomsolu/geomsolu.html But Why? Intuitive Mathematics (Archived) https://web.archive.org/web/20160821053459/https://sites.google.com/site/butwhymath/algebra/the-quadratic-formula MindYourDecisions posts The
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The secret to pizza’s name origin is mathematics, or so the legend goes… #Shorts Images https://commons.wikimedia.org/wiki/File:Pizza_Tikka.JPG#filelinks https://commons.wikimedia.org/wiki/File:Volume_of_a_pizza.svg Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas! If you buy from the links below I may receive a commission for sales. (As
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The imaginary number i is equal to the square root of negative 1. But if you raise i to the power of i, you get a very real number, equal to about one fifth. This is just amazing! #Shorts Song credits Song: I’m Real (Murder Remix) Artist: Jennifer Lopez · Ja Rule Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send
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People often choose the dealer in poker by “dealing to the first ace.” Is this a mathematically fair system? It is not! The video illustrates how the system favors early people being dealt cards. Calculating the theoretical expected values: http://mindyourdecisions.com/blog/2010/10/26/choosing-the-dealer-in-poker-is-dealing-to-the-first-ace-a-fair-system/ If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions Connect on social
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Yes, it’s a cat video on YouTube. More videos with Tadashi Tokieda at: http://bit.ly/tadashi_vids Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Simons Foundation initiative dedicated to engaging everyone with the process of science. NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile
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Simpsons Book: http://amzn.to/1fKe4Yo — Main Fermat Theorem video: http://youtu.be/qiNcEguuFSA — Water Ballons: http://youtu.be/nacPIOb68Ws More links & stuff in full description below ↓↓↓ Author Simon Singh on Fermat’s Last Theorem in popular culture, especially The Simpsons. Also mentioning Al Jean and David X Cohen. NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Numberphile tweets: https://twitter.com/numberphile Subscribe: http://bit.ly/Numberphile_Sub
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The 17th annual Brazilian Olympiad featured an incredibly tricky logic puzzle that went viral on social media. Thanks to Guilherme who suggested and translated the problem from Portuguese to English! Pinocchio problem discussions https://ultimosegundo-ig-com-br.translate.goog/brasil/2022-06-08/questao-obmep-pinoquio-viraliza-personagem-mentiu.html?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp Students make memes involving Pinocchio and leak reactions A question about Pinocchio. What is your opinion about alternative C? from askphilosophy
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Tadashi’s back (for the final video in this mini series) demonstrating the Kendama and some angular momentum. More links & stuff in full description below ↓↓↓ Tadashi Tokieda will be back on Numberphile soon. Here’s a playlist of his videos: http://bit.ly/tadashi_vids Kendama also known as bilboquet or boliche or bolero. Video by Brady Haran and
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This is a fun algebra problem. Can you figure it out? Thanks to Aslah from India for the suggestion! Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address at end of many videos). I may not reply but I do consider all ideas! If you buy from the links below I may receive a commission for
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Asha and Lata are two sisters with mathematically interesting ages. If you write Lata’s age after Asha’s, you get a 4 digit perfect square. Amazingly the same thing happens if you repeat the exercise in 11 years. How old are Asha and Lata currently? 0:00 Problem 1:09 Difference of squares 2:25 Solution Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send
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Three squares are formed on the three sides of an equilateral triangle. Each square has a side length equal to 1. What is the radius of the circle that circumscribes the squares? Thanks to Royce for the suggestion! This comes from the 2021 Colin Doyle Mathematics Competition in Australia. Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by
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Thanks to Francisco from Portugal for the suggestion! They say Euler asked this tricky algebra problem to his students. Reference Euler’s Riddle Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address in video). I consider all ideas though can’t always reply! Like many YouTubers I use popular software to prepare my videos. You can search for
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If you’ve been watching, you should be able to solve this one! Solutions on the web https://artofproblemsolving.com/wiki/index.php/1984_AIME_Problems/Problem_3 https://web2.0calc.com/questions/another-one-of-my-triangle-questions http://jwilson.coe.uga.edu/MATH7200/ProblemSet4.3.htmlSubscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address in video). I consider all ideas though can’t always reply! Like many YouTubers I use popular software to prepare my videos. You can search for animation software tutorials on
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Previous video sets this up: https://youtu.be/-ruC5A9EzzE Extra on concatenation: https://youtu.be/LgnoYsbI7Uc More links & stuff in full description below ↓↓↓ We appreciate any help on Patreon – it lets us make a few more and better videos: http://www.patreon.com/numberphile Matt Parker on Numberphile playlist: http://bit.ly/Matt_Videos Matt’s channel: http://bit.ly/StandUpMaths Parker Square T-Shirt: http://bit.ly/ParkerSquareTshirt Inder J. Taneja papers… Single
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What is the fewest number of moves which can solve any Rubik’s Cube? It’s God’s Number. More links & stuff in full description below ↓↓↓ See our full series of Rubik’s Cube videos at: http://www.youtube.com/playlist?list=PLt5AfwLFPxWJNAdHv8TUCOmj7iKqyHZeg This video features Matt Parker, James Grime and Katie Steckles. More about Matt’s record attempt and those solving helpers at
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If you ever need to practically convert temperature from weather reports, this is a neat little trick. Just memorize a few values and you can easily convert. I saw this trick in a Lifehacker article. #shorts References https://lifehacker.com/how-to-convert-celsius-to-fahrenheit-without-doing-any-1848777530 https://en.wikipedia.org/wiki/Fahrenheit#/media/File:Thermometer_CF.svg Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (address at end of many videos). I may not
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