🆕 Dr. Peyam's Show: A linear algebra integral
YouTube
A linear algebra integral
In this video I integrate e^(ax)cos(bx) without using integration by parts or complex analysis, but instead using pure linear algebra. This is probably not the most efficient method, but it provides an illustration of how linear algebra makes everything neater.…
🆕 standupmaths: Can animals predict the future? Meet Barry the Psychic Labrador!
YouTube
Can animals predict the future? Meet Barry the Psychic Labrador!
Barry the Psychic Labrador has predicted an England win: https://psychic-pets.com/pets/232 Lilo the Psychic Basset Hound has predicted a Sweden win: https://...
Forwarded from Today I Learned 🎓
TIL that the "division symbol" is actually named the "Obelus", and that the ISO standard for mathematical signs says that it "should not be used" for division. [Source]
Today I Learned 🎓
TIL that the "division symbol" is actually named the "Obelus", and that the ISO standard for mathematical signs says that it "should not be used" for division. [Source]
Wikipedia
Obelus
division sign (U+00F7), obelus, or obell: mathematical operator; rating marker sometimes used as a hyphen variant, differentiated in some contexts; old punctuation mark to indicate questionable passages in manuscripts
🆕 blackpenredpen: Pythagorean Triple Formulas
YouTube
finding ALL pythagorean triples (solutions to a^2+b^2=c^2)
How to generate ALL the Pythagorean Triples, namely a^2+b^2=c^2 where a, b, c, are whole numbers? Here we will find all the solutions to a^2+b^2=c^2. This is a very classic number theory question and it is very suitable for high school algebra and geometry…
🆕 MindYourDecisions: Can You Figure Out The Special 6 Digit Number?
YouTube
Can You Figure Out The Special 6 Digit Number?
A 6 digit number abcdef has the following property. Make a table with 6 rows, where column i = 1, 2, 3, 4, 5, 6 is the number abcdef multiplied by i. (If the first row was 123456, the second row would be 123456 x 2 = 246912). The result is a Latin square:…
🆕 Numberphile: 21-card trick - Numberphile
YouTube
21-card trick - Numberphile
A simple trick with some neat math behind it. More on Numberphile cards at: http://www.bradyharanblog.com/numberphile-playing-cards
More links & stuff in full description below ↓↓↓
More cards video: http://bit.ly/Cards_Shuffling
This video features Anastasia…
More links & stuff in full description below ↓↓↓
More cards video: http://bit.ly/Cards_Shuffling
This video features Anastasia…
🆕 Think Twice: Pythagorean theorem | 3 Visual Proofs |
YouTube
Pythagorean theorem | 3 Visual Proofs |
Some of my favorite proofs of Pythagorean theorem. Enjoy:)
_________________________________________________________________
Support my animations on:
https://www.patreon.com/Think_twice
_________________________________________________________________…
_________________________________________________________________
Support my animations on:
https://www.patreon.com/Think_twice
_________________________________________________________________…