@BeefGriller Celebrate both #HalfTau day and #TauDay ! #HalfTauDay

Happy #PiDay to those who celebrate. But I prefer to wait for #TauDay myself.

#MathNerd #MathsNerd

Happy #TauDay, folks!

I even made a little thing. :) (Nothing super fancy, just having some fun.)

https://www.youtube.com/watch?v=M6axx4kdAmA

Happy Tau Day, 2025!

YouTube

Happy wrong-date-format-but-right-circle-constant-day for those who celebrate!

#tauday

Happy Tau Day, to those who use a weird date format. Unfortunately, there’s no pie.

#tauday

Tau Day 2025

Happy Tau Day!

Math, Physics, Tau, et alia
It's also #TauDay today, a celebration of the circle constant. It’s numerically equal to 2*Pi, so some think it’s better than Pi. Are you #TeamTau or #TeamPi? Maybe the Tau Manifesto will help you decide https://tauday.com (we're not taking sides on this...) #MathsToday #UKMathsChat

Happy 𝝉 day, everyone!

#TauDay

Finally, a #ShamelessPlug reminder:

My pi-and-tau t-shirts (and others) are available in the InspiredByMath Etsy shop.

https://inspiredbymath.etsy.com

Order today and I can pretty-much *guarantee* delivery in time for both #PiDay and #TauDay ... 2026.

(Also: Etsy is currently running a seller promotion reimbursing a bit on sales made through the link; this doesn't help *you*, but *I* could certainly use the extra buck! :)

Thanks for your support!

Happy #TauDay all who celebrate...