Mastodawn

#PreshTalwalkar is long overdue to revisit xyr sign-off screen on every #MindYourDecisions video.

Not making the finalist list for an award in 2017 falls somewhat flat as an achievement, made even worse by the fact that xe appears directly beneath Elon Musk.

It is fast approaching a decade. Surely something more noteworthy has happened since, what with Lockdown and all? Susanne Scherer has been to talk to the EU Parliament in that time and @standupmaths has calculated pi. Surely M. Talwalkar has not rested on those 2017 laurels?

https://shortyawards.com/category/9th/stem

#Maths #MathQueen #StandUpMaths #MattParker #SusanneScherer

STEM in Social Media - Shorty Awards

The nominees for the Best STEM in Social Media Shorty Award

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JdeBP Jan 14, 2025

@bytebro

As #PreshTalwalkar pointed out, it's not that it's not well defined. It is well defined, and M. Talwalkar gave the definition.

The problem is that ln over the complex numbers is not injective, but is rather one-to-many. So powers of complex numbers have multiple values, and ln does not cancel exp. Cancelling ln with exp when the domain is ℂ seems to be at the heart of many of these fallacious proofs.

#ComplexNumbers #logarithms #maths #fallacies

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JdeBP Jan 14, 2025

@bytebro

#PreshTalwalkar did this one a year ago, and without much shouting to boot. (-:

https://youtube.com/watch?v=R476CTKUIr4

#ComplexNumbers #logarithms #maths #fallacies

Breaking the rules of math π = 0. Where is the mistake?

YouTube

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JdeBP Jan 3, 2025

@bytebro

Xe had less of a tendency to shout in the ones from years ago. That's my main difficulty. It is the audio equivalent of too many exclamation marks.

"and! that's!! the answer!!1!"

I should turn subtitles on and see whether the videos are subtitled that way. (-:

I'm going to hold off on #PreshTalwalkar shouting at me, for a while. (-:

JdeBP Nov 23, 2024

Recreational mathematicians will love the comments section of this one. One can skip #PreshTalwalkar shouting with no loss.

Commenters have pointed out that the seemingly excessive details in fact rule out some of the wilder suggestions in comments (e.g. taxicab metric/toroidal spacecraft/relativistic effects) and require a rainy planet.

But no-one has, as I write this, assumed hyperbolic geometry, or a incompletely-connected space.

https://www.youtube.com/watch?v=cyOeYzqxfEo

#mathematics #geometry

Teacher's final exam goes viral

YouTube

Bellissimo questo quizzino 👍

Devo dire #PreshTalwalkar è una garanzia, thanks for sharing!

Simpatico! Devo dire che i quizzini di #PreshTalwalkar sono sempre molto stimolanti

Questo è un problema che si può esprimere molto bene con la ricorsione (sto leggendo un bellissimo libro di @AlSweigart sul tema) perché dovrebbe calcolare la somma da 0 a n di tanti xi dove si inizia con x1 pari 1000/4 e poi ogni xi+1 non è altro che xi+1=⌊(bonusxi+resto)%4⌋

In teoria possiamo generalizzare a P elementi iniziali invece di 1000 e pure il bonus tavoletta a piacere invece di 4